upsil

upsil

1. Upsilon, 20th letter of the Greek alphabet. 2. Symbol for kinematic viscosity.

U U

1. Abbreviation for unit. 2. Symbol for kilurane; uranium; uridine in polymers; uracil; internal energy; urinary concentration, followed by subscripts indicating location and chemical species.

ubihydroquinone ubihydroquinone (yu´bi-hI-dro-quI´non)

ubiquinol

ubiquinol (H2Q, Q-H2) ubiquinol (H₂Q, Q-H₂) (yu´bi-kwI´nol, yu-bik´wi-nol)

The reduction product of a ubiquinone.ubihydroquinone;

ubiquinone ubiquinone (yu´bi-kwI´non, yu-bik´wi-non)

A 2,3-dimethoxy-5-methyl-1,4-benzoquinone with a multiprenyl side chain; a mobile component of electron transport. See also coenzyme Q.

ubiquinone-6 (-Q6) ubiquinone-6 (-Q₆)

Ubiquinone-30; coenzyme Q₆;2,3-Dimethoxy-5-methyl-6-hexaprenyl-1,4 benzoquinone.

ubiquinone-10 (-Q10) ubiquinone-10 (-Q₁₀)

Ubiquinone-50; coenzyme Q₁₀;2,3-Dimethoxy-5-methyl-6-decaprenyl-1,4-benzoquinone.

ubiquitin ubiquitin (yu-bik´kwi-tin)

A small (76 amino acid residues) protein found in all cells of higher organisms and one whose structure has changed minimally during evolutionary history; involved in at least two processes; histone modification and intracellular protein breakdown.

udder udder (ud´er)

The large complex of mammary glands of the cow and other ungulates. [A.S., uder]

UDP UDP

Abbreviation for uridine 5´-diphosphate.

UDP-N-acetylglucosamine:lysosomal enzyme N-acetylglucosaminyl-1-phosphotransferase UDP-N-acetylglucosamine:lysosomal enzyme N-acetylglucosaminyl-1-phosphotransferase

An enzyme that participates in the posttranslational modification of a number of lysosomal proteins; a deficiency or defect in this enzyme results in two forms of mucolipidoses, I-cell disease, and pseudo-Hurler polydystrophy.

UDPG UDPG

Abbreviation for uridine diphosphoglucose.

UDPGal UDPGal

Abbreviation for uridine diphosphogalactose.

UDPgalactose UDPgalactose

Uridine diphosphogalactose.

UDPgalactose 4-epimerase UDPgalactose 4-epimerase

UDPglucose 4-epimerase

UDPGlc UDPGlc

Abbreviation for uridine diphosphoglucose.

UDP-GlcUA UDP-GlcUA

Abbreviation for uridine diphosphoglucuronic acid.

UDPglucose UDPglucose

uridine diphosphoglucose

UDPglucose 4-epimerase UDPglucose 4-epimerase

An enzyme that catalyzes the reversible Walden inversion of UDPglucose to UDPgalactose; a deficiency of this enzyme is associated with one type of galactosemia.UDPgalactose 4-epimerase, uridine diphosphoglucose 4-epimerase;

UDPglucose-hexose-1-phosphate uridylyltransferase UDPglucose-hexose-1-phosphate uridylyltransferase

An enzyme that catalyzes the reversible reaction of a-d-glucose 1-phosphate UDPgalactose to produce UDPglucose and a-d-galactose 1-phosphate. See also UDPglucose 4-epimerase.hexose-1-phosphate uridylyltransferase, phosphogalactoisomerase;

UDPglucuronate-bilirubinglucuronoside glucuronosyltransferase UDPglucuronate-bilirubinglucuronoside glucuronosyltransferase

UDPglucuronate-bilirubin glucuronosyltransferase

UDPglucuronate-bilirubin glucuronosyltransferase UDPglucuronate-bilirubin glucuronosyltransferase

Hepatic transferases that catalyze the transfer of the glucuronic moiety of UDP-glucuronic acid to bilirubin or bilirubin glucuronide, thus producing UDP and either bilirubin-glucoronoside or bilirubin bisglucuronoside, respectively; these bile conjugates are then secreted into the bile.UDPglucuronate-bilirubinglucuronoside glucuronosyltransferase;

UDPxylose UDPxylose

A pyrophosphate group links the 5´ position of uridine and the 1-position of d-xylose; formed by the decarboxylation of UDPglucuronic acid; required for the synthesis of proteoglycans; inhibits UDPglucose dehydrogenase.

Uehlinger Uehlinger

E., Swiss pathologist, *1899. See Meyenburg-Altherr-U. syndrome.

UFA UFA

Abbreviation for unesterified free fatty acid.

Uffelmann Uffelmann

Jules, German physician, 1837-1894. See U.'s reagent.

UGI UGI

Abbreviation for upper gastrointestinal series.

Uhl Uhl

Henry S.M., S. internist, *1921. See U. anomaly.

Uhthoff Uhthoff

Wilhelm, German ophthalmologist, 1853-1927. See U.'s sign; Uhthoff symptom.

UIP UIP

Abbreviation for usual interstitial pneumonia of Liebow.

ukambin ukambin (u-kam´bin)

An African arrow poison from plants of the family Apocynaceae; a heart poison resembling digitalis or strophanthus in its action.

ulcer ulcer (ul´ser)

A lesion on the surface of the skin or on a mucous surface, caused by superficial loss of tissue, usually with inflammation. A wound with superficial loss of tissue from trauma is not primarily an u., but may become ulcerated if infection occurs.ulcus; [L. ulcus (ulcer-), a sore, ulcer]
acute decubitus u. a severe form of bedsore, of neutrophic origin, occurring in hemiplegia or paraplegia.
Aden u. the lesion occurring in cutaneous leishmaniasis.
amputating u. an u. encircling a limb.
anastomotic u. an u. of jejunum, after gastroenterostomy.
atonic u. an u. that shows little or no tendency to heal.
Buruli u. an u. of the skin, with widespread necrosis of subcutaneous fat, due to infection with Mycobacterium ulcerans; occurs in Uganda in persons living on the Nile river banks. [Buruli, district in Uganda]
chiclero u. lesion of the pinna of the ear due to cutaneous leishmaniasis, usually Leishmania mexicana; seen in workers harvesting chicle plants in Central America.bay sore; [Sp. chicle farmer, fr. chicle, fr. Nahuatl chictli]
chrome u. an u. produced by exposure to chromium compounds.tanner's u;
chronic u. a longstanding u. with fibrous scar tissue in the floor of the u.
cockscomb u. an u. that may occur in association with condylomata acuminata.
cold u. a small gangrenous u. on the extremities; due to defective circulation.
constitutional u. an u. due to systemic disease, such as tuberculosis.symptomatic u;
corrosive u. noma
creeping u. serpiginous u
Curling's u. an u. of the duodenum in a patient with extensive superficial burns, intracranial lesions, or severe bodily injury.stress u.'s;
decubitus u. a chronic u. that appears in pressure areas of skin overlying a bony prominence in debilitated patients confined to bed or otherwise immobilized, due to a circulatory defect.bedsore, decubital gangrene, hospital gangrene, nosocomial gangrene, pressure gangrene, pressure sore, sloughing phagedena, ulcus hypostaticum;
dendritic corneal u. keratitis caused by herpes simplex virus.
dental u. an u. on the oral mucuous membrane caused by biting or by rubbing against the edge of a broken tooth.
diphtheritic u. an u. covered with a gray adherent membrane, caused by Corynebacterium diphtheriae.
distention u. an u. of the intestine in the dilated part above a stricture.
elusive u. Hunner's u
fascicular u. a localized vascularization of the cornea to the site of a corneal u.
Fenwick-Hunner u. Hunner's u
Gaboon u. a form of tropical u. affecting the residents of this region; it resembles a syphilitic u., especially in the appearance of its scar. [Gaboon, a region in Africa]
gastric u. an u. of the stomach.
gravitational u. a chronic u. of the leg with impaired healing because of the dependent position of the extremity and the incompetence of the valves of the varicosed veins; the venous return stagnates and creates hypoxemia. See also varicose u.
groin u. granuloma inguinale tropicum
gummatous u. lesion of the skin occurring in late syphilis.
hard u. chancre
healed u. an u. covered by epithelial regeneration, beneath which there may be scarring and absence of glands or appendages.
herpetic u. u. caused by herpes simplex virus.
Hunner's u. a focal and often multiple lesion involving all layers of the bladder wall in chronic interstitial cystitis; the surface epithelium is destroyed by inflammation and the initially pale lesion cracks and bleeds with distention of the bladder.elusive u., Fenwick-Hunner u;
hypopyon u. 1. an advancing central suppurative u. of the cornea; See also hypopyon. 2. a corneal u. with pus in the anterior chamber;
indolent u. a chronic u., with hard elevated edges and few or no granulations, and showing no tendency to heal.
inflamed u. an u. with a purulent discharge and inflamed borders.
Kurunegala u.'s pyosis tropica [Kurunegala, a district in Sri Lanka]
Lipschütz' u. a simple acute ulceration of the vulva or lower vagina of nonvenereal origin.ulcus vulvae acutum;
lupoid u. an u. resembling that of cutaneous tuberculosis.
Mann-Williamson u. See Mann-Williamson operation.
marginal ring u. of cornea a slowly advancing intermittent u. involving the circumference of the corneal margin.
Marjolin's u. well-differentiated but aggressive squamous cell carcinoma occurring in cicatricial tissue at the epidermal edge of a sinus draining underlying osteomyelitis.
Meleney's u. undermining u. of the skin and subcutaneous tissues, usually following an operation, caused by a synergistic interaction between microaerophilic nonhemolytic streptococci and aerobic hemolytic staphylococci.Meleney's gangrene, progressive bacterial synergistic gangrene;
Mooren's u. chronic inflammation of the peripheral cornea that slowly progresses centrally with corneal thinning and sometimes perforation.
Oriental u. the lesion occurring in cutaneous leishmaniasis.Oriental sore;
penetrating u. an u. extending into deeper tissues of an organ.
peptic u. an u. of the alimentary mucosa, usually in the stomach or duodenum, exposed to acid gastric secretion.
perambulating u. phagedenic u
perforated u. an u. extending through the wall of an organ.
perforating u. of foot a round, deep, trophic u. of the sole of the foot, following disease or injury, in any part of its course from the center to the periphery of the nerve supplying the part.mal perforant;
phagedenic u. a rapidly spreading u. attended by the formation of extensive sloughing.perambulating u., sloughing u., ulcus ambulans;
phlegmonous u. a u. accompanied by inflammation of the neighboring tissues.
pudendal u. granuloma inguinale
recurrent aphthous u.'s aphtha (2)
ring u. of cornea inflammation of the greater part or the whole of the corneal periphery.
rodent u. obsolete term for a slowly enlarging ulcerated basal cell carcinoma, usually on the face.
Saemisch's u. a form of serpiginous keratitis, frequently accompanied by hypopyon.
serpent u. of cornea serpiginous keratitis
serpiginous u. an u. extending on one side while healing at the opposite edge, forming an undulating margin.creeping u;
serpiginous corneal u. serpentine ulceration of the cornea, due to infection, most often with Streptococcus pneumoniae.
simple u. a local, not constitutional, u. not accompanied by marked pain or inflammation.
sloughing u. phagedenic u
soft u. chancroid
stasis u. varicose u
stercoral u. an u. of the colon due to pressure and irritation of retained fecal masses.
steroid u. an u., usually on the leg or foot, developing from a wound in patients undergoing long-term steroid therapy; results from the wound-healing inhibitory effects characteristic of steroids.
stomal u. an intestinal u. occurring after gastrojejunostomy in the jejunal mucosa near the opening (stoma) between the stomach and the jejunum.
stress u.'s Curling's u
Sutton's u. a solitary, deep, painful u. of the buccal or genital mucous membrane.
symptomatic u. constitutional u
syphilitic u. 1. chancre 2. any ulceration caused by a syphilitic infection.
Syriac u. , Syrian u. old names for diphtheria.
tanner's u. chrome u
transparent u. of the cornea obsolete term for an u. of the cornea, occurring usually in children, that heals without opacity.
trophic u. u. resulting from cutaneous sensory denervation. See also perforating u. of foot.trophic gangrene;
tropical u. 1. the lesion occurring in cutaneous leishmaniasis; 2. tropical phagedenic ulceration caused by a variety of microorganisms, including mycobacteria; common in northern Nigeria.tropical sore;
undermining u. a chronic cutaneous u. with overhanging margins; due to hemolytic streptococci or other bacteria.
varicose u. the loss of skin surface in the drainage area of a varicose vein, usually in the leg, resulting from stasis and infection.stasis u;
venereal u. chancroid
Zambesi u. an u., usually single, about 3 cm in diameter, on the foot or leg, occurring in laborers in the Zambesi Delta; it has a sloughing surface, but does not spread and produces no constitutional symptoms or glandular enlargement; it is associated with the presence of a spirillum and a large fusiform bacillus; one attack seems to confer a partial immunity.

ulcera ulcera (ul´ser-a)

Plural of ulcus.

ulcerate ulcerate (ul´ser-at)

To form an ulcer.

ulcerated ulcerated (ul´ser-at-ed)

Having undergone ulceration.

ulceration ulceration (ul-ser-a´shun)

1. The formation of an ulcer. 2. An ulcer or aggregation of ulcers.
lip and leg u. ulcerative dermatosis
tracheal u. erosion of the tracheal mucous membrane with, in some cases, exposure of the rings, at the site at which a cuffed tracheostomy tube has been present for some time.

ulcerative ulcerative (ul´ser-a-tiv)

Relating to, causing, or marked by an ulcer or ulcers.

ulcerogenic ulcerogenic (ul´ser-o-jen´ik)

Ulcer-producing.

ulceroglandular ulceroglandular (ul´ser-o-gland´yu-lar)

Denoting a local ulceration at a site of infection followed by regional or generalized lymphadenopathy.

ulceromembranous ulceromembranous (ul´ser-o-mem´bra-nus)

Relating to or characterized by ulceration and the formation of a false membrane.

ulcerous ulcerous (ul´ser-us)

Relating to, affected with, or containing an ulcer. [L. ulcerosus]

ulcus ulcus, pl. ulcera (ul´kus, ul´ser-a)

ulcer [L.]
u. am´bulans phagedenic ulcer
u. hypostat´icum decubitus ulcer
u. tere´brans obsolete term for an invasive basal cell carcinoma, usually around the eye, nose, or ear, and extending to underlying bony tissue.
u. vene´reum 1. chancre 2. chancroid
u. vul´vae acu´tum Lipschütz' ulcer

ule- ule-

See ulo-.

ulectomy ulectomy (yu-lek´to-me)

Obsolete synonym for cicatrectomy. [G. oule, scar, + ektome, excision]

ulegyria ulegyria (yu´le-jI´re-a)

A defect of the cerebral cortex characterized by narrow and distorted gyri; may be congenital or the result of scars. [G. oule, scar, + gyros, ring]

ulerythema ulerythema (u´ler-i-the´ma)

Scarring with erythema. [G. oule, scar, + erythema, redness of the skin]
u. ophryog´enes folliculitis of the eyebrows resulting in scarring and alopecia.
u. sycosifor´me lupoid sycosis

uletomy uletomy (yu-let´o-me)

Obsolete synonym for cicatricotomy. [G. oule, scar, + tome, incision]

ulex europaeus ulex europaeus (u-leks ur´o-pa-us)

A lectin that reacts specifically with a-l-fucose, used as a marker for endothelial cells in paraffin sections.

Ullmann Ullmann

Emerich, Hungarian surgeon, 1861-1937. See U.'s line, syndrome.

Ullrich Ullrich

Otto, German physician, 1894-1957. See Morquio-U. disease.

ulna ulna, gen and pl. ulnae (ul´na, ul´ne) [NA]

The medial and larger of the two bones of the forearm.cubitus (2) [NA]; [L. elbow, arm, fr. G. olene]

ulnad ulnad (ul´nad)

In a direction toward the ulna. [ulna + L. ad, to]

ulnar ulnar (ul´nar)

Relating to the ulna, or to any of the structures (artery, nerve, etc.) named from it; relating to the ulnar or medial aspect of the upper limb.ulnaris [NA];

ulnaris ulnaris (ul-na´ris) [NA]

ulnar [Mod. L.]

ulnen ulnen (ul´nen)

Relating to the ulna independent of other structures. [ulna + G. en, in]

ulnocarpal ulnocarpal (ul´no-kar´pal)

Relating to the ulna and the carpus, or to the ulnar side of the wrist.

ulnoradial ulnoradial (ul´no-ra´de-al)

Relating to both ulna and radius; denoting the two articulations, ligaments, etc., between them.

ulo- ulo- , ule-

1. Scar, scarring. [G. oule] 2. obsolete the gums. See also gingivo-. [G. oulon] 3. Curly. [G. oulo-, ouli-, woolly.]

ulodermatitis ulodermatitis (u´lo-der-ma-tI´tis)

Inflammation of the skin resulting in destruction of tissue and the formation of scars. [G. oule, scar, + derma, skin, + -itis, inflammation]

uloid uloid (yu´loyd)

1. Resembling a scar. 2. A scarlike lesion due to a degenerative process in deeper layers of skin. [G. oule, scar + eidos, resemblance]

ulotomy ulotomy (yu-lot´o-me)

Obsolete term for cicatricotomy. [G. oule, scar, + tome, incision]

ulotrichous ulotrichous (yu-lot´ri-kus)

Having curly hair. Cf. leiotrichous. [G. oulotrichos, curly haired, fr. oulos, wooly, + thrix (trich-), hair]

ultimobranchial ultimobranchial (ul´ti-mo-brang´ke-al)

In embryology, relating to the caudal pharyngeal pouch. [L. ultimus, last, + G. branchia, gills]

ultimum moriens ultimum moriens (ul´ti-mum mor´I-enz)

The right atrium of the heart, said to contract after the rest of the heart is still. [L. the last thing dying]

ultra- ultra-

Excess, exaggeration, beyond. [L. beyond]

ultrabrachycephalic ultrabrachycephalic (ul-tra-brak-e-se-fal´ik)

Denoting an extremely short skull, one with an index of at least 90.

ultracentrifugation ultracentrifugation (ul-tra-sen´tri-fyu-ga-shun)

The process of subjecting to an ultracentrifuge.

ultracentrifuge ultracentrifuge (ul´tra-sen´tri-fyuj)

A high-speed centrifuge (up to 100,000 rpm) by means of which large molecules, e.g., of protein or nucleic acids, are caused to sediment at practicable rates; used for determinations of molecular weights, separation of large molecules, criteria of homogeneity of large molecules, conformational studies, etc.

ultracytostome ultracytostome (ul-tra-sI´to-stom)

Former name for micropore. [ultra- + G. kytos, cell, + stoma, mouth]

ultradian ultradian (ul-tra´de-an)

Relating to biologic variations or rhythms occurring in cycles more frequent than every 24 hours. Cf. circadian, infradian. [ultra- + L. dies, day]

ultradolichocephalic ultradolichocephalic (ul-tra-dol-i-ko-se-fal´ik)

Denoting a very long skull, one with a cephalic index of less than 65.

ultrafilter ultrafilter (ul´tra-fil-ter)

A semipermeable membrane (collodion, fish bladder, or filter paper impregnated with gels) used as a filter to separate colloids and large molecules from water and small molecules, which pass through.

ultrafiltration ultrafiltration (ul´tra-fil-tra´shun)

Filtration through a semipermeable membrane or any filter that separates colloid solutions from crystalloids or separates particles of different size in a colloid mixture.

ultraligation ultraligation (ul-tra-lI-ga´shun)

Ligation of a blood vessel beyond the point where a branch is given off.

ultramicroscope ultramicroscope (ul-tra-mI´kro-skop)

A microscope that utilizes refracted light for visualizing objects not visible with the ordinary microscope when direct light is used.

ultramicroscopic ultramicroscopic (ul´tra-mI-kro-skop´ik)

submicroscopic

ultramicrotome ultramicrotome (ul-tra-mI´kro-tom)

A microtome used in cutting sections 0.1 mum thick, or less, for electron microscopy.

ultramicrotomy ultramicrotomy (ul´tra-mI-krot´o-me)

The cutting of ultrathin sections for electron microscopy by use of an ultramicrotome.

ultrasonic ultrasonic (ul-tra-son´ik)

Relating to energy waves similar to those of sound but of higher frequencies (above 30,000 Hz). [ultra- + L. sonus, sound]

ultrasonics ultrasonics (ul-tra-son´iks)

The science and technology of ultrasound, its characteristics and phenomena.

ultrasonogram ultrasonogram (ul-tra-son´o-gram)

The image obtained by ultrasonography. See also echogram.sonogram;

ultrasonograph ultrasonograph (ul´tra-son´o-graf)

Computerized instrument used to create an image using ultrasound.sonograph; [ultra- + L. sonus, sound, + G. grapho, to write]

ultrasonographer ultrasonographer (ul´tra-so-nog´ra-fer)

A person who performs and interprets ultrasonographic examinations.echographer, sonographer;

ultrasonography ultrasonography (ul´tra-so-nog´ra-fe)

The location, measurement, or delineation of deep structures by measuring the reflection or transmission of high frequency or ultrasonic waves. Computer calculation of the distance to the sound-reflecting or absorbing surface plus the known orientation of the sound beam gives a two-dimensional image. See also ultrasound.echography, sonography; [ultra- + L. sonus, sound, + G. grapho, to write]
Doppler u. application of the Doppler effect in ultrasound to detect movement of scatterers (usually red blood cells) by the analysis of the change in frequency of the returning echoes.In many instances, ultrasound has supplanted x-radiography as the imaging method of choice, because it poses no risk to patients, is noninvasive, and of moderate cost. Doppler-corrected ultrasound enables real-time viewing of tissues, blood flow, and organs that cannot be obtained by any other method. It has proved a boon to cardiology, greatly aiding evaluations of cardiovascular patients, and to obstetrics, where it is used for fetal monitoring.
duplex u. the combination of real-time and Doppler u.
endovaginal u. pelvic u. using a probe inserted into the vagina.
gray-scale u. the display of the ultrasound echo amplitude or signal intensity as different shades of gray, improving image quality compared to the obsolete black and white presentation.
real-time u. rapid serial ultrasound images produced using a phased array or scanning transducer; produces a video display of organ motion, such as heart valve or fetal motion.

ultrasonosurgery ultrasonosurgery (ul´tra-son-o-ser´jer-e)

Use of ultrasound techniques to disrupt cells, tissues, or tracts, particularly in the central nervous system.

ultrasound ultrasound (ul´tra-sownd)

Sound having a frequency greater than 30,000 Hz.
diagnostic u. the use of u. to obtain images for medical diagnostic purposes, employing frequencies ranging from 1.6 to about 10 MHz.
obstetric u. use of diagnostic u. during pregnancy.

ultrastructure ultrastructure (ul-tra-struk´chur)

Structures or particles seen with the electron microscope.fine structure;

ultratherm ultratherm (ul´tra-therm)

A short-wave diathermy machine. [ultra- + G. therme, heat]

ultraviolet ultraviolet (ul-tra-vI´o-let)

Denoting electromagnetic rays at higher frequency than the violet end of the visible spectrum.
u. A (UVA) u. radiation from 320 to 400 nm that causes skin tanning but is very weakly sunburn-producing and carcinogenic.
u. B (UVB) u. radiation from 290 to 320 nm that most effectively causes sunburning and tanning; excessive UVB exposure is a cause of cancer of fair skin.
u. C (UVC) u. radiation from 200 to 290 nm; UVC in sunlight does not reach the surface of the earth; germicidal and mercury arc lamps may cause sunburn and photokeratitis.
extravital u. having wavelengths of 2900 to 1850 Å.
intravital u. having wavelengths of 3900 to 3200 Å.
vital u. rays necessary or helpful to normal growth; they promote calcium metabolism, are antirachitic in action, and have wavelengths between 3200 and 2900 Å.

ultravirus ultravirus (ul´tra-vI´rus)

virus (2)

ultromotivity ultromotivity (ul´tro-mo-tiv´i-te)

Power of spontaneous movement. [L. ultro, beyond, on one's own part + L. motio, movement]

ululation ululation (u-lu-la´shun)

Rarely used term for the inarticulate crying of emotionally disturbed persons. [L. ululo, pp. -atus, to howl]

Uly´sses Uly´sses

Latin form of Greek mythological character. See Ulysses syndrome.

umbilical umbilical (um-bil´i-kal)

Relating to the umbilicus.omphalic;

umbilicate umbilicate , umbilicated (um-bil´i-kat, -kat-ed)

Of navel shape; pitlike; dimpled. [L. umbilicatus]

umbilication umbilication (um-bil-i-ka´shun)

1. A pit or navel-like depression. 2. Formation of a depression at the apex of a papule, vesicle, or pustule.

umbilicus umbilicus, pl. umbilici (um-bil´i-kus, um-bi-lI-kus; -i-sI, -lI´kI) [NA]

The pit in the center of the abdominal wall marking the point where the umbilical cord entered in the fetus.belly button, navel; [L. navel]

umbo umbo, gen. umbonis, pl. umbones (um´bo, -bo-nis, -bo-nes)

1. [NA] A projecting point of a surface. 2. u. of tympanic membrane [L. boss of a shield, a knob]
u. membra´nae tym´pani [NA] u. of tympanic membrane
u. of tympanic membrane the projection on the inner surface of the tympanic membrane at the end of the manubrium of the malleus; this corresponds to the most depressed point of the membrane, viewed laterally, that is commonly called the umbo.u. membranae tympani [NA], umbo (2);

UMP UMP

Abbreviation for uridine 5´-monophosphate.

UMP synthase UMP synthase

uridylic acid

un- un-

1. Not, akin to L. in- and G. a-, an-. 2. Reversal, removal, release, deprivation. 3. An intensive action. [M.E.]

uncal uncal (ung´kal)

Denoting or relating to the uncus.

unci unci (un´sI)

Plural of uncus.

uncia uncia (un´se-a)

An ounce. [L. a twelfth part, an ounce]

unciform unciform (un´si-form)

uncinate [L. uncus, hook, + forma, form]

unciforme unciforme (un-si-for´me)

hamate bone [Mod. L. unciform]

Uncinaria Uncinaria (un-si-nar´e-a)

A genus of nematode hookworms that infect various mammals. Species include U. stenocephala, the European hookworm of dogs, cats, and various wild carnivores, also found in North America, where it is much less common than Ancylostoma caninum, though it has been implicated in human cutaneous larva migrans. [LL. uncinus, a hook]

uncinariasis uncinariasis (un´si-na-rI´a-sis)

ancylostomiasis

uncinate uncinate (un´si-nat)

1. Hooklike or hook-shaped. 2. Relating to an uncus or, specifically, to the u. gyrus (2) or a process of the pancreas or of a vertebra.unciform; [L. uncinatus]

uncinatum uncinatum (un-si-na´tum)

hamate bone

uncipressure uncipressure (un´si-presh-ur)

Arrest of hemorrhage from a cut artery by pressure with a blunt hook. [L. uncus, hook]

uncomplemented uncomplemented (un-kom´ple-men-ted)

Not united with complement and therefore inactive.

unconscious unconscious (un-kon´shus)

1. Not conscious. 2. In psychoanalysis, the psychic structure comprising the drives and feelings of which one is unaware.insensible (1);
collective u. in Jungian psychology, the combined engrams or memory potentials inherited from an individual's phylogenetic past.

unconsciousness unconsciousness (un-kon´shus-ness)

An imprecise term for severely impaired awareness of self and the surrounding environment; most often used as a synonym for coma or unresponsiveness.

unco-ossified unco-ossified (un-ko-os´i-fId)

Not co-ossified; not united into one bone.

uncouplers uncouplers (un-kup´lerz)

Substances such as dinitrophenol that allow oxidation in mitochondria to proceed without the usual concomitant phosphorylation to produce ATP; these poisons thus "uncouple" oxidation and phosphorylation.uncoupling factors;

uncovertebral uncovertebral (un-ko-ver´te-bral)

Pertaining to or affecting the uncinate process of a vertebra.

unction unction (ungk´shun)

The action of anointing or rubbing with an ointment or oil. [L. unctio, fr. ungo, pp. unctus, to anoint]

unctuous unctuous (ungk´shu-us, -chu-us)

Greasy or oily. [L. unctuosus, fr. unctio, unction]

uncture uncture (unk´chur)

ointment

uncus uncus, pl. unci (un´kus, un´sI) [NA]

1. Any hook-shaped process or structure. 2. The anterior, hooked extremity of the parahippocampal gyrus on the basomedial surface of the temporal lobe; the anterior face of the u. corresponds to the olfactory cortex, its ventral surface to the entorhinal area; deep to the uncus lies the amygdala (amygdaloid body).uncinate gyrus, u. gyri parahippocampalis; [L. a hook, fr. G. onkos]
u. gy´ri parahippocampa´lis uncus (2)

undecenoic acid undecenoic acid (un´des-e-no´ik)

undecylenic acid

undecoylium chloride undecoylium chloride (un-de-ko-il´e-um)

Acylcolaminoformylmethylpyridinium chloride;a topical antiseptic.

undecoylium chloride-iodine undecoylium chloride-iodine

A complex of iodine with undecoylium chloride; a cationic detergent used topically as a germicidal agent.

undecylenate undecylenate (un-des´i-li-nat)

A salt of undecylenic acid.

undecylenic acid undecylenic acid (un-des-i-len´ik)

CH₂CH(CH₂)₈COOH;an acid present in small amounts in sweat; used with its zinc salt in ointments, or as a powder in the treatment of fungus diseases of the skin, psoriasis, and certain other cutaneous affections.undecenoic acid;

underachievement underachievement (un´der-a-chev´ment)

Failure to achieve as well as one's abilities would seem to allow.

underachiever underachiever (un´der-a-chev´er)

One who manifests underachievement.

underbite underbite (un´der-bIt)

A nontechnical term applied to mandibular underdevelopment or to excessive maxillary development.

undercut undercut (un´der-kut)

1. That portion of a tooth that lies between the survey line (height of contour) and the gingivae. 2. The contour of a cross-section of a residual ridge or dental arch which would prevent the insertion of a denture. 3. The contour of a flasking stone which interlocks in such a way as to prevent the separation of the parts.

underdrive pacing underdrive pacing (un´der-drIv pas´ing)

Electrical stimulation of the heart at a rate lower than that of an existing tachycardia; designed to capture the heart between beats, i.e., to interrupt a reentry pathway in order to terminate the tachycardia.

undernutrition undernutrition (un´der-nu-tri´shun)

A form of malnutrition resulting from a reduced supply of food or from inability to digest, assimilate, and utilize the necessary nutrients.

undersensing undersensing (un´der-sen´sing)

Non-sensing of the intracardiac atrial or ventricular depolarization signal by a pacemaker.

undershoot undershoot (un´der-shut)

A temporary decrease below the final steady-state value that may occur immediately following the removal of an influence that had been raising that value, i.e., overshoot in a negative direction.

understain understain (un´der-stan)

To stain less deeply than usual.

underventilation underventilation (un´der-ven-ti-la´shun)

hypoventilation

underwinding underwinding (un´der-wInd´ing)

The effect of negative supercoiling on a structure of DNA.

Underwood Underwood

Michael, English pediatrician, 1737-1820. See U.'s disease.

undifferentiated undifferentiated (un´dif-er-en´she-a-ted)

Not differentiated; e.g., primitive, embryonic, immature, or having no special structure or function.

undine undine (un´den, -dIn)

A small glass flask that was used in irrigation of the conjunctiva. [Mod. L. undina, fr. L. unda, wave]

undinism undinism (un´di-nizm)

A condition in which sexual thoughts are aroused by water, urine, and urination. [Mod. L. undina, fr. L. unda, wave]

undiversion undiversion (un-di-ver´shun)

Surgical restoration of continuity in any organ system, the flow through which had previously been diverted; e.g., between the upper urinary tract and bladder after supravesical urinary diversion.

undoing undoing (un-du´ing)

In psychology and psychiatry, an unconscious defense mechanism by which one symbolically acts out in reverse some earlier unacceptable behavior.

undulate undulate (un´du-lat)

Having an irregular, wavy border; denoting the shape of a bacterial colony. [Mod. L. undula, dim. of unda, wave]

undulipodium undulipodium, pl. undulipodia (un´du-li-po´de-um, -a)

A flexible whiplike intracellular extension of many eukaryotic cells, with a characteristic nine-fold symmetry, an arrangement of nine paired peripheral microtubules and one central pair, often termed 9 + 2 symmetry; it appears to grow out from a basal body (kinetosome) in the cell and is a fundamental component of the eukaryotic cell. Both the cilium and the eukaryotic flagellum (not the bacterial flagellum which lacks the 9 + 2 pattern) are considered u. [LL. undulo, to move in waves, fr. L. unda, wave, + Mod.L. podium, fr. G. podion, dim. of pous, foot]

ung ung

Abbreviation of L. unguentum, ointment.

ungual ungual (ung´gwal)

Relating to a nail or the nails.unguinal; [L. unguis, nail]

unguent unguent (ung´gwent)

ointment [L. unguentum]

ungues ungues (ung´gwez)

Plural of unguis.

Unguiculata Unguiculata (ung-gwik-yu-la´ta)

A division of Mammalia including all mammals having nails or claws, as distinguished from the Ungulata. [L. unguiculus, nail or claw]

unguiculate unguiculate (ung-gwik´yu-lat)

Having nails or claws, as distinguished from hooves.

unguiculus unguiculus (un-gwik´yu-lus)

A small nail or claw. [L. dim. of unguis, nail]

unguinal unguinal (ung´gwi-nal)

ungual

unguis unguis, pl. ungues (ung´gwis, -gwez) [NA]

nail [L.]
u. adun´cus ingrown nail
u. a´vis calcar avis
Haller's u. calcar avis
u. incarna´tus ingrown nail

Ungulata Ungulata (ung-gyu-la´ta)

A division of Mammalia containing the mammals with hooves, as distinguished from the Unguiculata.

ungulate ungulate (ung´gyu-lat)

Having hooves. [L. ungulatus, fr. ungula, hoof]

unguligrade unguligrade (ung´gyu-li-grad)

Walking on hooves, as by horses, pigs, and ruminants. [L. ungula, a hoof, + gradus, a step]

uni- uni-

One, single, not paired; corresponds to G. mono-. [L. unus]

uniarticular uniarticular (yu-ne-ar-tik´yu-lar)

monarticular

uniaxial uniaxial (yu-ne-ak´se-al)

Having but one axis; growing chiefly in one direction.

unibasal unibasal (yu-ni-ba´sal)

Having but one base.

Uniblue A Uniblue A (yu´ne-blu) [C.I. 14553]

A protein stain used in electrophoresis.

unicameral unicameral , unicamerate (yu-ne-kam´e-ral, -kam´e-rat)

monolocular

unicellular unicellular (yu-ni-sel´yu-lar)

Composed of but one cell, as in the protozoons; for such u. organisms capable of undertaking life processes independently of other cells, the term acellular is also used.

unicentral unicentral (yu-ni-sen´tral)

Having a single center, as of growth or of ossification.

unicorn unicorn (yu´ne-korn)

unicornous

unicornous unicornous (yu´ni-kor´nus)

Having but one horn, or cornu.unicorn; [L. unicornis, fr. uni- + cornu, horn]

unicuspid unicuspid , unicuspidate (yu-ni-kus´pid, -kus´pi-dat)

Having only one cusp, as a canine tooth.

unifamilial unifamilial (yu´ne-fa-mil´e-al)

Relating to or occurring in a single family; denoting especially a nervous disease attacking several of the children in the same family in which no hereditary trait is apparent.

uniflagellate uniflagellate (yu-ni-flaj´e-lat)

monotrichous

uniforate uniforate (yu-ni-fo´rat)

Having but one foramen, pore, or opening of any kind.

uniform uniform (yu´ni-form)

1. Having but one form; not variable in form. 2. Of the same form or shape as another structure or object. [L. uniformis, fr. uni- + forma, form]

unigerminal unigerminal (yu-ni-jer´mi-nal)

Relating to a single germ or ovum, e.g., monozygotic.monogerminal, monozygotic, monozygous;

uniglandular uniglandular (yu-ni-glan´du-lar)

Involving, relating to, or containing but one gland.

unilaminar unilaminar , unilaminate (yu-ni-lam´i-nar, -lam´i-nat)

Having but one layer or lamina.

unilateral unilateral (yu-ni-lat´e-ral)

Confined to one side only.

unilobar unilobar (yu-ni-lo´bar)

Having but one lobe.

unilocal unilocal (yu-ni-lo´kal)

Strictly, denoting a trait in which the genetic component is contributed exclusively by one locus; in practice, any trait in which the contribution from one locus is so large that the data are readily interpreted as mendelian.

unilocular unilocular (yu-ni-lok´yu-lar)

Having but one compartment or cavity, as in a fat cell. [uni- + L. loculus, compartment]

unimolecular unimolecular (yu´ni-mo-lek´yu-lar)

Denoting a single molecule.monomolecular;

uninuclear uninuclear , uninucleate (yu-ni-nu´kle-ar, -nu´kle-at)

Having but one nucleus. Cf. mononuclear.

uniocular uniocular (yu-ni-ok´yu-lar)

1. Relating to one eye only. 2. Having vision in only one eye.

union union (yun´yun)

1. The joining or amalgamation of two or more bodies. 2. The structural adhesion or growing together of the edges of a wound. [L. unus, one]
autogenous u. in dentistry, the u. of two pieces of metal without solder.
faulty u. fibrous u
fibrous u. u. of fracture by fibrous tissue. See nonunion.faulty u;
primary u. healing by first intention
secondary u. healing by second intention
vicious u. u. of the ends of a broken bone resulting in a deformity or a crooked limb; frequently used interchangeably with faulty u.malunion;

unioval unioval , uniovular (yu-ne-o´val, -ov´yu-lar)

Relating to or formed from a single ovum.

unipennate unipennate (yu-ni-pen´at)

1. Having a feather arrangement on one side; resembling one-half of a feather. 2. Denoting certain muscles with fibers running at an acute angle from one side of a tendon.demipenniform; [uni- + L. penna, feather]

unipolar unipolar (yu-ni-po´lar)

1. Having but one pole; denoting a nerve cell from which the branches project from one side only. 2. Situated at one extremity only of a cell.

uniport uniport (yu´ni-port)

Transport of a molecule or ion through a membrane by a carrier mechanism (uniporter), without known coupling to any other molecule or ion transport. Cf. antiport, symport. [uni- + L. porto, to carry]

uniporter uniporter (yu´ni-port-er)

A protein that mediates the transport of one molecule or ion through a membrane without known coupling to the transport of any other molecule or ion.

unipotent unipotent (yu´ni-po´tent)

Referring to those cells that produce a single type of daughter cell; e.g., a u. stem cell. Cf. pluripotent cells, under cell.

uniseptate uniseptate (yu-ni-sep´tat)

Having but one septum or partition.

unit (U) unit (U) (yu´nit)

1. One; a single person or thing. 2. A standard of measure, weight, or any other quality, by multiplications or fractions of which a scale or system is formed. 3. A group of persons or things considered as a whole because of mutual activities or functions. 4. international u [L. unus, one]
absolute u. a u. whose value is constant regardless of place or time and not derived from dependent on gravitation.
alexin u. complement u
Allen-Doisy u. the quantity of estrogen capable of producing in a spayed mouse a characteristic change in the vaginal epithelium, namely, disappearance of leukocytes and appearance of cornified cells, as determined by a vaginal smear; equal approximately to one-half of an estrone u.mouse u;
alpha u.'s cytoplasmic glycogen granules arranged in rosettes.
amboceptor u. hemolysin u
androgen u. (international) the androgenic activity of 100 mug (0.1 mg) of crystalline androsterone as assayed by the comb growth response in capons.
Ångström u. (Å) See Ångström.
antigen u. the smallest amount of antigen that, in the presence of specific antiserum, will fix 1 complement u.
antitoxin u. a u. expressing the strength or activity of an antitoxin; in general, determined with reference to a preserved standard preparation of antitoxin. See also L doses, under dose.
antivenene u. the amount of antivenum which, injected in the ear vein, will protect 1 g weight of rabbit against a fatal dose of snake venom.
atomic mass u. (amu) a u. of mass by definition equal to 1 / 12 of the mass of an atom of carbon-12, which equals 1.6605402 x 10^-27 kg; in terms of energy, 1 amu equals 931.49432 MeV. Cf. dalton.
base u.'s the fundamental u.'s of length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity in the International System of Units (SI); the names and symbols of the u.'s for these quantities are meter (m), kilogram (kg), second (s), ampere (A), kelvin (K), mole (mol), and candela (cd). See also International System of Units.
Bethesda u. a measure of inhibitor activity: the amount of inhibitor that will inactivate 50% or 0.5 unit of a coagulation factor during the incubation period. [Bethesda, MD]
biological standard u. a specific quantity of biologically active reference material (antibiotic, antitoxin, enzyme, hormone, vitamin, etc.).
bird u. a u. of prolactin activity: the minimal quantity of the hormone which will cause a certain increase in weight of the crop gland of pigeons.
Bodansky u. that amount of phosphatase that liberates 1 mg of phosphorus as inorganic phosphate during the first hour of incubation with a buffered substrate containing sodium beta-glycerophosphate.
British thermal u. (BTU) the quantity of heat required to raise one pound of water from 3.9°C to 4.4°C; equal to 251.996 calories or to 1055.056 joules.u. of heat (2);
capon u. amount of androgen needed to produce an increase in the capon comb surface of 20%.capon-comb u;
capon-comb u. capon u
cat u. the dose of a drug (per kilogram of body weight of cat) which is just large enough to kill a cat when administered intravenously; was applied in the standardization of digitalis materials.
centimeter-gram-second u. (CGS, cgs) , CGS u. , cgs u. an absolute u. of the centimeter-gram-second system.
chlorophyll u. the number of chlorophyll molecules required to reduce one molecule of carbon dioxide by photosynthesis.
chorionic gonadotropin u. (international) the specific gonadotropic activity of 0.1 mg of the standard preparation of chorionic gonadotropin originating from the urine or placentas of pregnant women.
Clauberg u. See Clauberg test.
complement u. the smallest amount (highest dilution) of complement that will cause hemolysis of a u. of red blood cells in the presence of a hemolysin u.alexin u;
Corner-Allen u. a u. of progestational activity, measured in rabbits; the minimum dose which, divided into five equal daily portions, produces on the sixth day the uterine changes characteristic of the eighth day of normal pregnancy; the u. has about the same potency as the international u.
coronary care u. (CCU) a group of beds within a hospital set aside for the care of patients having or suspected of having myocardial infarction.
corpus luteum hormone u. progesterone u
critical care u. (CCU) intensive care u
CT u. a unit of x-ray attenuation in each picture element of the CT image. See Hounsfield u.
Dam u. a u. of activity of vitamin K; the smallest amount of vitamin K, per gram of chick per day, capable of producing normal coagulability in the blood of K-avitaminotic chicks after 3 days of oral administration.
digitalis u. (international) the activity of 0.1 g of the international standard powdered digitalis.
diphtheria antitoxin u. the antitoxin activity of 0.0628 mg standard diphtheria antitoxin.
dog u. the amount of adrenal cortical extract per kilogram of body weight which, given daily, will maintain an adrenalectomized dog in good condition for 7 to 10 days.
electromagnetic u. (emu) the u. in an absolute system (CGS) of u.'s utilizing the magnetic effects of current; e.g., abampere, abfarad, abhenry, abohm, abvolt.
electrostatic u. (esu) the u. in an absolute system (CGS) of u.'s utilizing static electricity; e.g., statampere, statcoulomb, statfarad, stathenry, statvolt.
u. of energy 1. CGS system: erg, joule; 2. MKS system: newton-meter (joule); 3. FPS system: foot-poundal; 4. gravitational u.: gram-centimeter, gram-meter, kilogram-meter, foot-pound; 5. SI: joule.
equine gonadotropin u. (international) the specific gonadotropic activity of 0.25 mg of standard preparation of the gonadotropic principle of pregnant mares' serum.
estradiol benzoate u. (international) the estrogenic activity of 0.1 mug of a standard preparation of estradiol benzoate.
estrone u. (international) the estrogenic activity of 0.1 mug (0.0001 mg) of a standard preparation of crystalline estrone.
Fishman-Lerner u. a u. of serum acid phosphatase activity based upon measurement of the amount of phenol released from a phenylphosphate substrate.
Florey u. Oxford u
foot-pound-second u. (FPS, fps) , FPS u. , fps u. an absolute u. of the foot-pound-second system.
u. of force 1. CGS system: dyne; 2. FPS system: poundal; 3. MKS system: newton; 4. SI: newton.
gravitational u.'s (G) of energy: gram-centimeter, gram-meter, kilogram-meter, and foot-pound.
G u. of streptomycin See streptomycin u.'s.
u. of heat 1. calorie (gram calorie; kilocalorie) 2. British thermal u 3. joule
hemolysin u. , hemolytic u. the smallest quantity (highest dilution) of inactivated immune serum (hemolysin) that will sensitize the standard suspension of erythrocytes so that the standard complement will cause complete hemolysis.amboceptor u;
heparin u. the quantity of heparin required to keep 1 ml of cat's blood fluid for 24 hr at 0°C; it is equivalent approximately to 0.002 mg of pure heparin.Howell u;
Holzknecht u. (H) an obsolete u. of x-ray dosage equal to one-fifth of the erythema dose.
Hounsfield u. a normalized index of x-ray attenuation based on a scale of -1000 (air) to +1000 (bone), with water being 0; used in CT imaging.
Howell u. heparin u
insulin u. (international) the activity contained in 1 / 22 mg of the international standard of zinc-insulin crystals.
intensive care u. (ICU) a hospital facility for provision of intensive nursing and medical care of critically ill patients, characterized by high quality and quantity of continuous nursing and medical supervision and by use of sophisticated monitoring and resuscitative equipment; may be organized for the care of specific patient groups, e.g., neonatal or newborn ICU, neurological ICU, pulmonary ICU.critical care u;
u. of intermedin a u. based upon the action of the hormone in causing the expansion of the melanophores in a hypophysectomized frog; equal to 1 mug of alkali-treated USP Posterior-pituitary Reference Standard.
international u. (IU) the amount of a substance, such as a drug, hormone, vitamin, enzyme, etc., that produces a specific effect as defined by an international body and accepted internationally; e.g., for an enzyme it is mumole of product formed (or substrate consumed) per minute.unit (4);
International System of U.'s See International System of Units.
Jenner-Kay u. that amount of phosphatase that liberates 1 mg of phosphorus; approximately 2 Bodansky u.'s or 1 King u.
Karmen u. a formerly used enzyme u. for aminotransferase activity; a change of 0.001 in the absorbance of NADH/min.
Kienböck's u. (X) an obsolete u. of x-ray dosage equivalent to 1 / 10 the erythema dose.
King u. the quantity of phosphatase that, acting upon disodium phenylphosphate in excess, at pH 9 for 30 min, liberates 1 mg of phenol.King-Armstrong u;
King-Armstrong u. King u
u. of length 1. metric system and SI: meter; 2. CGS system: centimeter; 3. variable in the English system: inch for short distances, foot for moderate distances and for elevation, mile for long distances.
u. of light See candela, lux.
L u. of streptomycin See streptomycin u.'s.
u. of luminous flux See lumen.
u. of luminous intensity See candela.
lung u. 1. a respiratory bronchiole together with the alveolar ducts and sacs and pulmonary alveoli into which the respiratory bronchiole leads; 2. considered by some to include the terminal bronchiole and its subdivisions, and called a pulmonary acinus.
u. of luteinizing activity (international) progesterone u
u. of magnetic field intensity See gauss, tesla.
u. of magnetic flux intensity See gauss, tesla.
u. of mass 1. metric system: gram; 2. SI: kilogram; 3. english system: pound.
meter-kilogram-second u. , MKS u. , mks u. an absolute u. of the meter-kilogram-second system.
motor u. a single somatic motor neuron and the group of muscle fibers innervated by it.
mouse u. (m.u.) Allen-Doisy u
u. of ocular convergence meter angle
ostiomeatal u. ostiomeatal complex
Oxford u. the minimum amount of penicillin which will prevent the growth of Staphylococcus aureus over an area 26 mm in diameter in a standard culture medium; 1 u. equals 0.6 mug of crystalline sodium salt of penicillin.Florey u;
u. of oxytocin the oxytocic activity of 0.5 mg of the USP Posterior-pituitary Reference Standard; 1 mg of synthetic oxytocin corresponds to 500 IU.
u. of penicillin (international) the penicillin activity of 0.6 mug of penicillin G.
phosphatase u. See Bodansky u., King u.
physiologic u. 1. the ultimate (hypothetical) vital u. of protoplasm, as conceived by Spencer; 2. the smallest division of an organ that will perform its function; e.g., the uriniferous tubule.
practical u.'s u.'s of magnitudes convenient for use in the practical applications of electricity; as originally defined they were absolute u.'s (multiples of CGS electromagnetic u.'s); they include the ampere, coulomb, farad, henry, joule, ohm, volt, and watt.
u. of progestational activity (international) See progesterone u.
progesterone u. (international) the progestational activity of 1 mg of u. of progestational activity (international); standard preparation of pure progesterone. See also Clauberg test, Corner-Allen u.corpus luteum hormone u., u. of luteinizing activity;
prolactin u. (international) the specific lactogenic activity contained in 0.1 mg of the standard preparation of the lactogenic substance of the anterior pituitary gland.
u. of radioactivity See Becquerel.
riboflavin u. potency usually expressed in terms of weight of pure riboflavin. See also Sherman-Bourquin u. of vitamin B₂.vitamin B₂ u;
roentgen u. See Roentgen.
Schwann cell u. a single Schwann cell and all of the axons lying in troughs indenting its surface; this u. regarded as an unmyelinated fiber in the peripheral nervous system.
Sherman u. u. of vitamin C, minimum protective dose; the minimum amount of vitamin C which, fed daily, will protect a 300-g guinea pig from scurvy for 90 days; equivalent to 0.5 to 0.6 mg of ascorbic acid.
Sherman-Bourquin u. of vitamin B₂ the amount of vitamin B₂ required in the diet daily to sustain an average weekly gain of 3 g for 8 weeks in standard test rats; one u. is equivalent to 1 to 7 mug (0.001 to 0.007 mg) of riboflavin, depending on the deficiency diet used in the above assay.
Sherman-Munsell u. a rat growth u.; the daily amount of vitamin A which sustains a rate of gain amounting to 3 g a week in standard test rats.
SI u.'s See base u.'s, International System of Units.
Somogyi u. a measure of the level of activity of amylase in blood serum, as analyzed by means of the Somogyi method (the most frequently used procedure); one u. is equivalent to 1 mg of reducing sugar liberated as glucose per 100 ml of serum, when an aliquot of the latter is mixed with a standard starch substrate (plus sodium chloride for maximal activation) and incubated for a standard time; normal range is 80 to 150 u.'s, but values are usually not regarded as clinically significant unless they are greater than 200.
S u. of streptomycin See streptomycin u.'s.
Steenbock u. a u. of vitamin D; the total amount of vitamin D which will produce within 10 days a narrow line of calcium deposit in the rachitic metaphyses of the distal ends of the radii and ulnae of standard rachitic rats.
streptomycin u.'s 1. g u.: equals 1 g of the crystalline material or about 1,000,000 S u.'s; 2. l u.: equal to 1000 S u.'s; 3. s u.: the amount of streptomycin which will inhibit the growth of a standard strain of Escherichia coli in 1 ml of nutrient broth or other suitable medium.
Svedberg u. (S) a sedimentation constant of 1 x 10^-¹³ seconds.
tetanus antitoxin u. the antitoxin activity of 0.3094 mg of standard tetanus antitoxin.
thiamin chloride u. thiamin hydrochloride u. (international).
thiamin hydrochloride u. (international) the antineuritic activity of 0.003 mg of the standard crystalline vitamin B₁ hydrochloride.vitamin B₁ hydrochloride u;
u. of thyrotrophic activity the activity of an amount of an extract of the anterior lobe of the hypophysis which, given daily for 5 days, will cause the thyroid of a guinea pig (weighing 200 g) to reach a weight of 600 mg.
Todd u. the u. in which the results of testing for antistreptolysin O (ASO) are expressed. It denotes the reciprocal of the highest dilution of test serum at which there continues to be neutralization of a standard preparation of the streptococcal enzyme streptolysin O.
toxic u. (T.U.) a u. formerly synonymous with minimal lethal dose but which, because of the instability of toxins, is now measured in terms of the quantity of standard antitoxin with which the toxin combines. See also L doses, under dose, minimal lethal dose.toxin u;
toxin u. (T.U.) toxic u
USP u. a u. as defined and adopted by the United States Pharmacopeia.
u. of vasopressin the pressor activity of 0.5 mg of the USP Posterior-pituitary Reference Standard; 1 mg of synthetic vasopressin corresponds to 600 IU.
vitamin A u. (international) the specific biologic activity of 0.3 mug of vitamin A (alcohol form). See also Sherman-Munsell u.
vitamin B₂ u. riboflavin u
vitamin B₆ u. potency expressed in terms of weight of pure crystalline pyridoxine.
vitamin B₁ hydrochloride u. thiamin hydrochloride u
vitamin C u. (international) the vitamin C activity of 0.05 mg of the standard crystalline levoascorbic acid; 1 mg of crystalline vitamin C provides 20 USP u.'s. See also Sherman u.
vitamin D u. (international) the antirachitic activity contained in 0.025 mug of a preparation of crystalline vitamin D₃ (activated 7-dehydrocholesterol). See also Steenbock u.
vitamin E u. potency usually expressed in terms of weight of pure a-tocopherol.
vitamin K u. See Dam u.
volume u. (VU) a u. of a logarithmic scale for expressing the power level of a complex audio-frequency electrical signal, such as that transmitting music or speech; the power in volume u.'s equals the decibels of power above a reference level of one milliwatt, as measured with an appropriate meter.
u. of wavelength See Ångström, nanometer.
u. of weight See u. of mass.
Wood u.'s a simplified measurement of pulmonary vascular resistance that uses pressures instead of more complicated u.'s measured by subtracting pulmonary capillary wedge pressure from the mean pulmonary arterial pressure and dividing by cardiac output in liters per minute.
u. of work See u. of energy.

United States Adopted Names (USAN) United States Adopted Names (USAN)

Designation for nonproprietary names (for drugs) adopted by the USAN Council in cooperation with the manufacturers concerned; the designation USAN is applicable only to nonproprietary names coined since June 1961.

United States Pharmacopeia (USP) United States Pharmacopeia (USP)

See Pharmacopeia.

United States Public Health Service (USPHS) United States Public Health Service (USPHS)

A bureau of the Department of Health and Human Services, served by a corps of medical officers presided over by the Surgeon General, concerned with scientific research, domestic and insular quarantine, administration of government hospitals, publication of sanitary reports, and statistics; associated with it are the National Institutes of Health, Centers for Disease Control and Prevention, and other units.

univalence univalence , univalency (yu-ni-va´lens, -va´len-se)

monovalence

univalent univalent (yu-ni-va´lent)

monovalent (1)

unmedullated unmedullated (un-med´yu-la-ted)

unmyelinated

unmyelinated unmyelinated (un-mI´e-li-na-ted)

Denoting nerve fibers (axons) lacking a myelin sheath.amyelinated, amyelinic, nonmedullated, nonmyelinated, unmedullated;

Unna Unna

Paul G., German dermatologist and staining expert, 1850-1929. See U.'s disease, mark, stain; U.-Pappenheim stain; U.-Taenzer stain.

unofficial unofficial (un-o-fish´al)

Denoting a drug that is not listed in the United States Pharmacopeia or the National Formulary.

unphysiologic unphysiologic (un-fis´e-o-loj´ik)

Pertaining to conditions in the organism which are abnormal; can be used to refer to subjecting the body to abnormal amounts of substances normally present.

unsanitary unsanitary (un-san´i-tar-e)

insanitary

unsaturated unsaturated (un-sach´ur-at-ed)

1. Not saturated; denoting a solution in which the solvent is capable of dissolving more of the solute. 2. Denoting a chemical compound in which all the affinities are not satisfied, so that still other atoms or radicals may be added to it. 3. In organic chemistry, denoting compounds containing double and/or triple bonds.

unsex unsex (un´seks)

To castrate; to deprive of the gonads.

unsoundness unsoundness (un-sownd´nes)

In a horse, any deviation in form or function from the normal that interferes with the animal's usefulness.

unstriated unstriated (un-strI´at-ed)

Without striations; not striped; denoting the structure of the smooth or involuntary muscles.

unthrifty unthrifty (un-thrif´te)

In animals, denoting a failure to grow or develop normally as a result of disease.

Unverricht Unverricht

Heinrich, German physician, 1853-1912. See U.'s disease.

UPJ UPJ

Abbreviation for ureteropelvic junction.

up-regulation up-regulation

Opposite of down-regulation.

upsiloid upsiloid (up´si-loyd)

hypsiloid

upsilon upsilon (up´si-lon)

20th Letter in the Greek alphabet.

upstream upstream (up´strem)

Refers to nucleic acid base sequences proceeding the opposite direction from expression.

uptake uptake (up´tak)

The absorption by a tissue of some substance, food material, mineral, etc. and its permanent or temporary retention.

Ura Ura

Abbreviation for uracil.

urachal urachal (yur´a-kal)

Relating to the urachus.

urachus urachus (yur´a-kus)

That portion of the reduced allantoic stalk between the apex of the bladder and the umbilicus median umbilical ligament; postnatally, the u. is normally merely a fibrous cord, but occasionally the old allantoic lumen may persist as a vesicoumbilical fistula. [G. ourachos, the urinary canal of a fetus]

uracil (Ura, U) uracil (Ura, U) (yur´a-sil)

2,4-Dioxopyrimidine; 2,4-(1H,3H)-pyrimidinedione;a pyrimidine (base) present in ribonucleic acid.
u. dehydrogenase an oxidoreductase catalyzing oxidation of uracil to barbituric acid; also oxidizes thymine.u. oxidase;
u. mustard 5-[bis(2-chloroethyl)amino]uracil;an alkylating antineoplastic agent.uramustine;
u. oxidase u. dehydrogenase
u. phosphoribosyltransferase See phosphoribosyltransferase.

uracil-6-carboxylic acid uracil-6-carboxylic acid

orotic acid

Uragoga Uragoga (yur´a-go-ga)

A genus of tropical plants (family Rubiaceae). U. ipecacuanha (Cephaelis ipecacuanha) is the source of Rio or Brazilian ipecac; U. acuminata (C. acuminata) is the source of Cartagena, Nicaragua, or Panama ipecac.Cephaelis;

uramustine uramustine (yur-a-mus´ten)

uracil mustard

uranin uranin (yu´ra-nin)

fluorescein sodium

uraninite uraninite (yu-ran´i-nIt)

pitchblende

uranisco- uranisco-

See urano-.

uraniscochasm uraniscochasm (yu-ra-nis´ko-kazm)

uranoschisis [uranisco- + G. chasma, cleft]

uranisconitis uranisconitis (yu´ra-nis-ko-nI´tis)

palatitis

uraniscoplasty uraniscoplasty (yu´ra-nis´ko-plas-te)

palatoplasty [uranisco- + G. plasso, to form]

uraniscorrhaphy uraniscorrhaphy (yu´ra-nis-kor´a-fe)

palatorrhaphy [uranisco- + G. rhaphe, suture]

uraniscus uraniscus (yu´ra-nis´kus)

palate [G. ouraniskos, roof of the mouth, dim. of ouranos, sky]

uranium (U) uranium (U) (yu-ra´ne-um)

A radioactive metallic element, atomic no. 92, atomic wt. 238.0289, occurring mainly in pitchblende and notable for its two isotopes: ²³⁸U and ²³⁵U (99.2745% and 0.720%, respectively, the rest being made up by ²³⁴U), ²³⁵U being the first substance ever shown capable of supporting a self-sustaining chain reaction. [G. myth. character, Uranus]

urano- urano- , uranisco-

The hard palate. [G. ouranos, sky vault, ouraniskos, roof of mouth (palate)]

uranoplasty uranoplasty (yu´ra-no-plas-te)

palatoplasty

uranorrhaphy uranorrhaphy (yu´ra-nor´a-fe)

palatorrhaphy [urano- + G. rhaphe, suture]

uranoschisis uranoschisis (yu´ra-nos´ki-sis)

Cleft of the hard palate.uraniscochasm; [urano- + G. schisis, fissure]

uranostaphyloplasty uranostaphyloplasty (yu´ra-no-staf´i-lo-plas-te)

Repair of a cleft of both hard and soft palate.uranostaphylorrhaphy; [urano- + G. staphyle, uvula, + plasso, to form]

uranostaphylorrhaphy uranostaphylorrhaphy (yu´ra-no-staf-i-lor´a-fe)

uranostaphyloplasty

uranostaphyloschisis uranostaphyloschisis (yu´ra-no-staf´i-los´ki-sis)

Cleft of the soft and hard palates.uranoveloschisis; [urano- + G. staphyle, uvula, + schisis, fissure]

uranoveloschisis uranoveloschisis (yu´ra-no-ve-los´ki-sis)

uranostaphyloschisis

uranyl uranyl (yur´a-nil)

The ion, UO₂²⁺ usually found in such salts as uranyl nitrate, UO₂(NO₃)₂; uranyl acetate, UO₂(CH₃COO)₂, is used in electron microscopy.

urapidil urapidil (u-ra´pI-dil)

An antihypertensive agent which acts by influencing serotonin receptors.

uraroma uraroma (yu´ra-ro´ma)

A spicy, aromatic odor of the urine. [G. ouron, urine, + aroma, spice]

urarthritis urarthritis (yu-rar-thrI´tis)

Gouty inflammation of a joint. [urate + arthritis]

urate urate (yur´at)

A salt of uric acid.
u. oxidase a copper-containing, oxygen-requiring oxidoreductase that oxidizes uric acid; used in the clinical diagnosis of increased uric acid levels.uricase;

uratemia uratemia (yu-ra-te´me-a)

The presence of urates, especially sodium urate, in the blood. [urate + G. haima, blood]

urateribonucleotide phosphorylase urateribonucleotide phosphorylase (yur´at-rI-bo-nu´kle-o-tId)

A ribosyltransferase that reacts urate d-ribonucleotide with orthophosphate to produce urate plus d-ribose 1-phosphate.

uratic uratic (yu-rat´ik)

Pertaining to a urate or to urates.

uratolysis uratolysis (yu-ra-tol´i-sis)

The decomposition or solution of urates. [urate + G. lysis, solution]

uratolytic uratolytic (yu´ra-to-lit´ik)

Causing the decomposition, or solution and removal of urates, from the tissues.

uratoma uratoma (yu-ra-to´ma)

gouty tophus [urate + G. -oma, tumor]

uratosis uratosis (yu-ra-to´sis)

Any morbid condition due to the presence of urates in the blood or tissues.

uraturia uraturia (yu-ra-tu´re-a)

The passage of an increased amount of urates in the urine. [urate + G. ouron, urine]

Urbach Urbach

Erich, U.S. dermatologist, 1893-1946. See U.-Wiethe disease.

Urban Urban

Jerome A., S. surgeon, *1914. See U.'s operation.

urceiform urceiform (yur-se´i-form)

Pitcher-shaped.urceolate; [L. urceus, pitcher, + forma, form]

urceolate urceolate (yur´se-o-lat)

urceiform [L. urceolus, dim. of urceus, pitcher]

Urd Urd

Abbreviation for uridine.

ur-defenses ur-defenses (ur´de-fens-ez)

Fundamental beliefs essential for human psychological integrity; e.g., religion, science.

ure- ure- , urea- , ureo-

Urea; urine. See also urin-, uro-. [G. ouron, urine]

urea urea (yu-re´a)

NH₂-CO-NH₂; carbonyldiamide;the chief end product of nitrogen metabolism in mammals, formed in the liver, by means of the Krebs-Henseleit cycle, and excreted in normal adult human urine in the amount of about 32 g a day (about 6 / 7 of the nitrogen excreted from the body). It may be obtained artificially by heating a solution of ammonium cyanate. It occurs as colorless or white prismatic crystals, without odor but with a cooling saline taste, is soluble in water, and forms salts with acids; has been used as a diuretic in kidney function tests, and topically for various dermatitides. [G. ouron, urine]
u. peroxide CH₄N₂O. H₂O₂;a white crystalline compound used in an aqueous solution as an oxidizing mouthwash.
u. stibamine a u. derivative of stibanilic acid, used in the treatment of kala azar and certain other tropical diseases.

ureagenesis ureagenesis (yu-re-a-jen´e-sis)

Formation of urea, usually referring to the metabolism of amino acids to urea.ureapoiesis; [urea + G. genesis, production]

ureal ureal (yu-re´al)

Relating to or containing urea.ureic;

Ureaplasma Ureaplasma (yu-re´a-plaz´ma)

A genus of microaerophilic to anaerobic, nonmotile bacteria (family Mycoplasmataceae) containing Gram-negative, predominantly coccoidal to coccobacillary elements, approximately 0.3 mum in diameter, which frequently grow in short filaments; colonies are generally small, 20 to 30 mum in diameter, and are normally without zones of surface growth. These organisms hydrolyze urea with production of ammonia, and are found in the human genitourinary tract, occasionally in the pharynx and rectum. In males, they are associated with nongonococcal urethritis and prostatitis; in females, with genitourinary tract infections and reproductive failure. The type species is U. urealyticum.T-mycoplasma;
U. urealy´ticum a species that has been isolated from the respiratory tract and central nerve system of newborns. It causes infections of the genitourinary tract, particularly urethritis. Thought to be sexually transmitted and transmitted from mother to infant.

ureapoiesis ureapoiesis (yu-re´a-poy-e´sis)

ureagenesis [urea + G. poiesis, a making]

urease urease (yur´e-as)

An enzyme that catalyzes the hydrolysis of urea to carbon dioxide and ammonia; used as an antitumor enzyme; it is present in intestinal bacterial and accounts for most of the ammonia generated from urea in mammals.

urecchysis urecchysis (yu-rek´i-sis)

Obsolete term for extravasation of urine into the tissues. [G. ouron, urine, + ekchysis, a pouring out]

uredema uredema (yu-re-de´ma)

Edema due to infiltration of urine into the subcutaneous tissues. [G. ouron, urine, + oidema, swelling]

uredo uredo (yu-re´do)

1. urticaria 2. A burning sensation in the skin. [L. a blight, a burning itch, fr. uro, pp. ustus, to burn]

ureic ureic (yu-re´ik)

ureal

ureide ureide (yur´e-Id)

Any compound of urea in which one or more of its hydrogen atoms have been substituted by acid radicals.

3-ureidohydantoin 3-ureidohydantoin (u-re´i-do-hI´dan-to-in)

allantoin

3-ureidoisobutyric acid 3-ureidoisobutyric acid (yu-re´i-do-I´so-byu-tir´ik)

H₂NCONH-CH₂CH(CH₃)COOH;an intermediate in thymine catabolism.

3-ureidopropionic acid 3-ureidopropionic acid (yu-re´i-do-pro-pi-on´ik)

H₂NCONH-CH₂CH₂COOH;an intermediate in uracil catabolism.

ureidosuccinic acid ureidosuccinic acid (yu-re´i-do-suk-sin´ik)

NH₂CONHCH(COOH)CH₂COOH; N-carbamoylaspartic acid;a precursor of the pyrimidines.N-carbamoylaspartic;

urelcosis urelcosis (yu-rel-ko´sis)

Ulceration of any part of the urinary tract. [G. ouron, urine, + helkosis, ulceration]

uremia uremia (yu-re´me-a)

1. An excess of urea and other nitrogenous waste in the blood. 2. The complex of symptoms due to severe persisting renal failure that can be relieved by dialysis.azotemia; [G. ouron, urine, + haima, blood]
hypercalcemic u. u. due to renal failure caused by hypercalcemia with nephrocalcinosis.

uremic uremic (yu-re´mik)

Relating to uremia.

uremigenic uremigenic (yu-re-mi-jen´ik)

1. Of uremic origin or causation. 2. Causing or resulting in uremia.

ureo- ureo-

See ure-.

ureotele ureotele (yu´re-o-tel)

An organism that is ureotelic; e.g., primates.

ureotelia ureotelia (yu´re-o-tel´e-a)

The process or type of nitrogen excretion in which urea is the primary end product. [urea + G. telos, end, outcome, + -ia]

ureotelic ureotelic (yu´re-o-tel´ik)

Excreting nitrogen primarily in the form of urea. [ureo- + G. telos, end]

urerythrin urerythrin (yur-er´i-thrin)

uroerythrin

uresiesthesia uresiesthesia (yu-re´si-es-the´ze-a)

The desire to urinate.uriesthesia; [G. ouresis, a urinating, + aisthesis, sensation]

uresis uresis (yu-re´sis)

urination [G. ouresis]

ureter ureter (yu-re´ter, yu´re-ter) [NA]

The thick-walled tube that conducts the urine from the renal pelvis to the bladder; it consists of an abdominal part and a pelvic part, is lined with transitional epithelium surrounded by smooth muscle, both circular and longitudinal, and is covered externally by a tunica adventitia. [G. oureter, urinary canal]
curlicue u. term given to the radiographic appearance of an opacified u., herniated through the sciatic foramen; a very rare condition.
ectopic u. opens somewhere other than the bladder wall.
postcaval u. congenital defect where the right u. passes deep to the inferior vena cava on its descent to the bladder.
retrocaval u. in urography, the medial deviation of the right u. in the rare circumstance in which it passes behind the inferior vena cava before entering the pelvis.
retroiliac u. congenital defect where the u. passes deep to the iliac artery.

ureteral ureteral (yu-re´te-ral)

Relating to the ureter.ureteric;

ureteralgia ureteralgia (yu-re-ter-al´je-a)

Pain in the ureter. [ureter + G. algos, pain]

uretercystoscope uretercystoscope (yu-re´ter-sis´to-skop)

ureterocystoscope

ureterectasia ureterectasia (yu-re´ter-ek-ta´ze-a)

Dilation of a ureter. [ureter + G. ektasis, a stretching out]

ureterectomy ureterectomy (yu-re-ter-ek´to-me)

Excision of a segment or all of a ureter. [ureter + G. ektome, excision]

ureteric ureteric (yu-re-ter´ik)

ureteral

ureteritis ureteritis (yu-re-ter-I´tis)

Inflammation of a ureter.

uretero- uretero-

The ureter. [G. oureter, urinary canal]

ureterocalicostomy ureterocalicostomy (yu-re´ter-kal-I-kos´-to-e)

Anastomosis of ureter to lower-pole collecting system of kidney after amputation of a portion of lower-pole parenchyma. [uretero- + G. kalyx, cup of a flower, + stoma, mouth]

ureterocele ureterocele (yu-re´ter-o-sel)

Saccular dilatation of the terminal portion of the ureter which protrudes into the lumen of the urinary bladder, probably due to a congenital stenosis of the ureteral meatus. [uretero- + G. kele, hernia]

ureterocelorraphy ureterocelorraphy (yu-re´ter-o-se-lor´a-fe)

Excision and suturing of a ureterocele performed through an open cystotomy incision. [ureterocele + G. raphe, suture]

ureterocolic ureterocolic (yu-re´ter-o-kol´ik)

Relating to the ureter and the colon, especially to an anastomosis for lesions of the lower urinary tract.

ureterocolostomy ureterocolostomy (yu-re´ter-o-ko-los´to-me)

Implantation of the ureter into the colon. [uretero- + G. kolon, colon, + stoma, mouth]

ureterocystoscope ureterocystoscope (yu-re´ter-o-sis´to-skop)

A cystoscope with an attachment for catheterization of the ureters; the catheter is passed into the ureter when its orifice is brought into view with the cystoscope.uretercystoscope; [uretero- + G. kystis, bladder, + skopeo, to view]

ureterocystostomy ureterocystostomy (yu-re´ter-o-sis-tos´to-me)

ureteroneocystostomy [uretero- + G. kystis, bladder, + stoma, mouth]

ureteroenteric ureteroenteric (yu-re´ter-o-en-ter´ik)

Relating to a ureter and the intestine.

ureteroenterostomy ureteroenterostomy (yu-re´ter-o-en-ter-os´to-me)

Formation of an opening between a ureter and the intestine. [uretero- + G. enteron, intestine, + stoma, mouth]

ureterography ureterography (yu-re´ter-og´ra-fe)

Radiography of the ureter after the direct injection of contrast medium. [uretero- + G. graphe, a writing]

ureterohydronephrosis ureterohydronephrosis (yu-re´ter-o-hI´dro-nef-ro´sis)

Hydronephrosis also involving the ureters.

ureteroileoneocystostomy ureteroileoneocystostomy (yu-re´ter-o-il´e-o-ne´o-sis-tos´to-me)

Restoration of the continuity of the urinary tract by anastomosis of the upper segment of a partially destroyed ureter to a segment of ileum, the lower end of which is then implanted into the bladder. [uretero- + ileum + G. neos, new, + hystis, bladder, + stoma, mouth]

ureteroileostomy ureteroileostomy (yu-re´ter-o-il-e-os´to-me)

Implantation of a ureter into an isolated segment of ileum which drains through an abdominal stoma. [uretero- + ileum + G. stoma, mouth]

ureterolithiasis ureterolithiasis (yu-re´ter-o-li-thI´a-sis)

The formation or presence of a calculus or calculi in one or both ureters. [ureterolith + G. -iasis, condition]

ureterolithotomy ureterolithotomy (yu-re´ter-o-li-thot´o-me)

Removal of a stone lodged in a ureter. [ureterolith + G. tome, incision]

ureterolysis ureterolysis (yu´re-ter-ol´i-sis)

Surgical freeing of the ureter from surrounding disease or adhesions. [uretero- + G. lysis, a loosening]

ureteroneocystostomy ureteroneocystostomy (yu-re´ter-o-ne´o-sis-tos´to-me)

An operation whereby a ureter is implanted into the bladder.ureterocystostomy; [uretero- + G. neos, new, + kystis, bladder, + stoma, mouth]

ureteronephrectomy ureteronephrectomy (yu-re´ter-o-ne-frek´to-me)

nephroureterectomy [uretero- + G. nephros, kidney, + ektome, excision]

ureteropathy ureteropathy (yu-re´ter-op´a-the)

Disease of the ureter. [uretero- + G. pathos, suffering]

ureteroplasty ureteroplasty (yu-re´ter-o-plas-te)

Surigal reconstruction of the ureters. [uretero- + G. plastos, formed]

ureteroproctostomy ureteroproctostomy (yu-re´ter-o-prok-tos´to-me)

Establishment of an opening between a ureter and the rectum.ureterorectostomy; [uretero- + G. proktos, rectum, + stoma, mouth]

ureteropyelitis ureteropyelitis (yu-re´ter-o-pI-e-lI´tis)

Inflammation of the pelvis of a kidney and its ureter. [uretero- + G. pyelos, pelvis, + -itis, inflammation]

ureteropyelography ureteropyelography (yu-re´ter-o-pI´e-log´ra-fe)

pyelography

ureteropyeloplasty ureteropyeloplasty (yu-re´ter-o-pI´e-lo-plas-te)

Surgical reconstruction of the ureter and of the pelvis of the kidney, usually for congenital ureteropelvic junction obstruction. [uretero- + G. pyelos, pelvis, + plastos, formed]

ureteropyelostomy ureteropyelostomy (yu-re´ter-o-pI-e-los´to-me)

Formation of a junction of the ureter and the renal pelvis. [uretero- + pelvis, + stoma, mouth]

ureteropyosis ureteropyosis (yu-re´ter-o-pI-o´sis)

An accumulation of pus in the ureter. [uretero- + G. pyosis, suppuration]

ureterorectostomy ureterorectostomy (yu-re´ter-o-rek-tos´to-me)

ureteroproctostomy

ureterorrhagia ureterorrhagia (yu-re´ter-o-ra´je-a)

Hemorrhage from a ureter. [uretero- + G. rhegnymi, to burst forth]

ureterorrhaphy ureterorrhaphy (yu-re-ter-or´a-fe)

Suture of a ureter. [uretero- + G. rhaphe, suture]

ureteroscope ureteroscope (yu-re´ter-o-skop)

An optical device passed in a retrograde fashion through the bladder up into the ureter to inspect the ureteral lumen.

ureterosigmoid ureterosigmoid (yu-re´ter-o-sig´moyd)

Relating to the ureter and the sigmoid colon, especially to an anastomosis between the two.

ureterosigmoidostomy ureterosigmoidostomy (yu-re´ter-o-sig-moy-dos´to-me)

Implantation of the ureter into the sigmoid colon.

ureterostenosis ureterostenosis (yu-re´ter-o-ste-no´sis)

Stricture of a ureter. [uretero- + G. stenosis, a narrowing]

ureterostomy ureterostomy (yu-re-ter-os´to-me)

Establishment of an external opening into the ureter. [uretero- + G. stoma, mouth]
cutaneous loop u. cutaneous u
cutaneous u. a stoma constructed of ureter at skin level for drainage of urine. This may be an end stoma or a loop stoma. Usually performed because of distal obstruction.cutaneous loop u;

ureterotomy ureterotomy (yu-re-ter-ot´o-me)

Incision and stenting of a narrow ureter. [uretero- + G. tome, incision]

ureterotrigonoenterostomy ureterotrigonoenterostomy (yu-re´ter-o-tri-go´no-en-ter-os´to-me)

Implantation of a ureter and its portion of the trigone of the bladder into the intestine. [uretero-, + trigone (of bladder), + enterostomy]

ureteroureteral ureteroureteral (yu-re´ter-o-yu-re´ter-al)

Relating to two segments of the same ureter or to both ureters, especially an artificial anastomosis between them.

ureteroureterostomy ureteroureterostomy (yu-re´ter-o-yu-re´ter-os´to-me)

Establishment of an anastomosis between the two ureters or between two segments of the same ureter. See transureteroureterostomy.

ureterovesical ureterovesical (yu-re´ter-o-ves´i-kal)

Relating to the ureter and the bladder, specifically the junction of ureter with bladder.

ureterovesicostomy ureterovesicostomy (yu-re´ter-o-ves-i-kos´to-me)

Surgical joining of a ureter to the bladder. [uretero- + L. vesica, bladder, + stoma, mouth]

urethan urethan , urethane (yu´re-than, -than)

NH₂COOC₂H₅;has antimitotic activity; formerly used medically as a hypnotic, but now more often used as an anesthetic for laboratory animals.ethyl carbamate;

urethr- urethr-

See urethro-.

urethra urethra (yu-re´thra)

A canal leading from the bladder, discharging the urine externally.urogenital canal; [G. ourethra]
anterior u. the portion of u. distal to urogenital diaphragm (external sphincter).
female u. a canal about 4 cm long passing from the bladder, in close relation with the anterior wall of the vagina and having a long axis that parallels that of the vagina, opening in the vestibule of the vagina posterior to the clitoris and anterior to the vaginal orifice.u. feminina [NA], u. muliebris;
u. femini´na [NA] female u
male u. a canal about 20 cm in length opening at the extremity of the glans penis; it gives passage to the spermatic fluid as well as the urine.u. masculina [NA], u. virilis;
u. masculi´na [NA] male u
membranous u. membranous part of male urethra
u. mulie´bris female u
penile u. spongy u
posterior u. the portion of u. posterior to the urogenital diaphram (external sphincter).
prostatic u. the prostatic part of the male urethra, about 2.5 cm in length, that traverses the prostate; it includes the seminal colliculus, and the ejaculatory and prostatic ducts open into it.pars prostatica urethrae [NA];
spongy u. the portion of the male urethra, about 15 cm in length, which traverses the corpus spongiosum.pars spongiosa urethrae masculinae [NA], pars cavernosa, penile u., spongy part of the male urethra;
u. viri´lis male u

urethral urethral (yu-re´thral)

Relating to the urethra.

urethralgia urethralgia (yu-re-thral´je-a)

Pain in the urethra.urethrodynia; [urethr- + G. algos, pain]

urethrectomy urethrectomy (yur-e-threk´to-me)

Excision of a segment or the entire urethra. [urethr- + G. ektome, excision]

urethremorrhagia urethremorrhagia (yu-re´threm-o-ra´je-a)

Bleeding from the urethra.urethrorrhagia; [urethr- + G. haima, blood, + rhegnymi, to burst forth]

urethrism urethrism , urethrismus (yu´re-thrizm, -thriz´mus)

Irritability or spasmodic stricture of the urethra.urethrospasm;

urethritis urethritis (yu-re-thrI´tis)

Inflammation of the urethra. [ureth- + G. -itis, inflammation]
anterior u. inflammation of the portion of the urethra anterior to the triangular ligament.
follicular u. chronic u. with nodular lymphocytic infiltrations in the mucosa.granular u;
gonorrheal u. infection of the urethra usually in association with a purulent discharge due to Neisseria gonorrhoeae.
granular u. follicular u
nongonococcal u. u. not resulting from gonococcal infection; venereally transmitted Chlamydia trachomatis is the most common cause.
nonspecific u. u. not resulting from gonococcal, chlamydial, or other specific infectious agents.simple u;
u. petrif´icans u., sometimes of gouty origin, in which there is a deposit of calcareous matter in the wall of the urethra.
posterior u. inflammation of the membranous and prostatic portions of the urethra.
simple u. nonspecific u
specific u. obsolete term for gonorrhea.
u. vene´rea obsolete term for gonorrhea.

urethro- urethro- , urethr-

The urethra. [G. ourethra]

urethrobulbar urethrobulbar (yu-re´thro-bul´bar)

bulbourethral

urethrocele urethrocele (yu-re´thro-sel)

Prolapse of the female urethra. [urethro- + G. kele, tumor, hernia]

urethrocystometrography urethrocystometrography (yu-re´thro-sis´to-me-trog´ra-fe)

urethrocystometry [urethro- + G. kystis, bladder, + metron, measure, + skopeo, to view]

urethrocystometry urethrocystometry (yu-re´thro-sis-tom´e-tre)

A procedure that simultaneously measures pressures in urinary bladder and urethra.urethrocystometrography; [urethro- + G. kystis, bladder, + metron, measure]

urethrocystopexy urethrocystopexy (yu-re´thro-sis´to-pek-se)

Fixation of urethra and bladder for stress incontinence.urethropexy; [urethro- + G. kystis, bladder, + pexis, fixation]

urethrodynia urethrodynia (yu-re-thro-din´e-a)

urethralgia [urethro- + G. odyne, pain]

urethrography urethrography (yu-re-throg´ra-fe)

Contrast radiography of the male or female urethra, by retrograde injection or during voiding of contrast medium in the bladder (cystourethrogram). [urethra + G. grapho, to write]

urethrometer urethrometer (yu-re-throm´e-ter)

An instrument for measuring the caliber of the urethra. [urethro- + G. metron, measure]

urethropenile urethropenile (yu-re´thro-pe´nIl)

Relating to the urethra and the penis.

urethroperineal urethroperineal (yu-re´thro-pe-rI-ne´al)

Relating to the urethra and the perineum.

urethroperineoscrotal urethroperineoscrotal (yu-re´thro-pe-rI-ne-o-skro´tal)

Relating to the urethra, perineum, and scrotum.

urethropexy urethropexy (yu-re´thro-pek-se)

urethrocystopexy [urethro- + G. pexis, fixation]

urethroplasty urethroplasty (yu-re´thro-plas-te)

Surgical reconstruction of the urethra. [urethro- + G. plastos, formed]
cecil u. a staged urethral reconstructive procedure wherein the urethral portion of the penis is left buried in the scrotum after urethroplasty at the first stage because of inadequate ventral skin cover.

urethroprostatic urethroprostatic (yu-re´thro-pros-tat´ik)

Relating to the urethra and the prostate.

urethrorectal urethrorectal (yu-re´thro-rek´tal)

Relating to the urethra and the rectum.

urethrorrhagia urethrorrhagia (yu-re-thro-ra´je-a)

urethremorrhagia

urethrorrhaphy urethrorrhaphy (yu-re-thror´a-fe)

Suture of the urethra. [urethro- + G. rhaphe, suture]

urethrorrhea urethrorrhea (yu-re-thro-re´a)

An abnormal discharge from the urethra. [urethro- + G. rhoia, a flow]

urethroscope urethroscope (yu-re´thro-skop)

An instrument for viewing the interior of the urethra. [urethro- + G. skopeo, to view]

urethroscopic urethroscopic (yu-re-thro-skop´ik)

Relating to the urethroscope or to urethroscopy.

urethroscopy urethroscopy (yu-re-thros´ko-pe)

Inspection of the urethra with a urethroscope.

urethrospasm urethrospasm (yu-re´thro-spazm)

urethrism

urethrostaxis urethrostaxis (yu-re´thro-stak´sis)

Oozing of blood from the urethra. [urethro- + G. staxis, trickling]

urethrostenosis urethrostenosis (yu-re´thro-ste-no´sis)

Stricture of the urethra. [urethro- + G. stenosis, a narrowing]

urethrostomy urethrostomy (yu-re-thros´to-me)

Surgical formation of a permanent opening between the urethra and the skin. [urethro- + G. stoma, mouth]
perineal u. formation of a permanent opening into the bulbous portion of the urethra through a perineal skin incision.

urethrotome urethrotome (yu-re´thro-tom)

An instrument for dividing a stricture of the urethra. [urethro- + G. tomos, cutting]

urethrotomy urethrotomy (yu-re-throt´o-me)

Surgical incision of a stricture of the urethra. [urethro- + G. tome, incision]
external u. u. via an external opening in the perineum or penile skin.perineal u;
internal u. u. by means of an instrument passed through the urethra.
perineal u. external u

urethrovaginal urethrovaginal (yu-re´thro-vaj´i-nal)

Relating to the urethra and the vagina.

urethrovesical urethrovesical (yu-re´thro-ves´i-kal)

Relating to the urethra and bladder.

urethrovesicopexy urethrovesicopexy (yu-re´thro-ves´i-ko-pek-se)

Surgical suspension of the urethra and the base of the bladder from the posterior surface of the pubic symphysis (or anterior abdominal wall or Cooper's ligament) for correction of urinary stress incontinence. [urethro- + L. vesica, bladder, + G. pexis, fixation]

-uretic -uretic

Urine. [G. ouretikos, relating to the urine]

URF URF

Abbreviation for unidentified reading frame; uterine relaxing factor.

urgency urgency (er´jen-se)

A strong desire to void.
motor u. u. from overactive detrusor function.
sensory u. u. due to vesicourethral hypersensitivity.

urginea urginea (er-jin´e-a)

The bulbs of Urginea indica (Indian squill) and Urginea maritima (white or Mediterranean squill); the source of squill. [L. urgeo, to press, referring to the shape of the seeds]

urhidrosis urhidrosis (yur-hi-dro´sis)

uridrosis

uri- uri- , uric- , urico-

Uric acid. [G. ouron, urine]

urian urian (yur´e-an)

urochrome

uric uric (yur´ik)

Relating to urine.

uric acid uric acid

2,6,8-trioxypurine;white crystals, poorly soluble, contained in solution in the urine of mammals and in solid form in the urine of birds and reptiles; sometimes solidified in small masses as stones or crystals or in larger concretions as calculi; with sodium and other bases it forms urates; elevated levels associated with gout.lithic acid, triketopurine;
u.a. oxidase See urate oxidase.

uricase uricase (yur´i-kas)

urate oxidase

urico- urico-

See uri-.

uricolysis uricolysis (yur-i-kol´i-sis)

Decomposition of uric acid. [urico- + G. lysis, a loosening]

uricolytic uricolytic (yur´i-ko-lit´ik)

Relating to or effecting the hydrolysis of uric acid.

uricosome uricosome (yur-ik´o-som)

A microbody rich in urate oxidase.

uricosuria uricosuria (yu´ri-ko-su´re-a)

Excessive amounts of uric acid in the urine. [urico- + G. ouron, urine]

uricosuric uricosuric (yu´ri-ko-su´rik)

Tending to increase the excretion of uric acid.

uricotele uricotele (ur´ik-o-tel)

An organism that is uricotelic; e.g., birds and land-dwelling reptiles.

uricotelia uricotelia (yur-ik´o-tel-e-a)

The process or type of nitrogen excretion in which uric acid is the chief excretion product. [uric (acid) + G. telos, end, outcome, + -ia]

uricotelic uricotelic (yur´i-ko-tel´ik)

Producing uric acid as the chief excretory product of nitrogen metabolism. [urico- + G. telos, end]

uridine (Urd) uridine (Urd) (yur´i-den)

Uracil ribonucleoside;one of the major nucleosides in RNAs; as the pyrophosphate (UDP, UDPG, etc.), u. is active in sugar metabolism.1-beta-d-ribofuranosyluracil;
cyclic u. 3´,5´-monophosphate (cUMP) a cyclic nucleotide involved in metabolic regulation; inhibits the growth of some tumors.
u. 5´-diphosphate (UDP) uridine 5´-pyrophosphate; a condensation product of uridine and pyrophosphoric acid. See also UDP.
u. 5´-monophosphate (UMP) uridylic acid
u. phosphorylase a ribosyltransferase that catalyzes the reaction of uridine with orthophosphate to produce uracil and a-d-ribose 1-phosphate.
u. 5´-triphosphate (UTP) u. esterified with triphosphoric acid at its 5´-position; the immediate precursor of uridylic acid residues in RNA.

uridine diphosphogalactose (UDPGal) uridine diphosphogalactose (UDPGal) (yur´i-den-dI-fos´fo-ga-lak´tos)

A pyrophosphate group links the 5´-position of uridine and the 1 position of d-galactose.
u.d. 4-epimerase See UDPglucose 4-epimerase.

uridine diphosphoglucose (UDPG, UDPGlc) uridine diphosphoglucose (UDPG, UDPGlc) (yur´i-den-dI-fos´fo-glu´kos)

A pyrophosphate group links the 5´-position of uridine and the 1-position of d-glucose; an intermediate in glycogen biosynthesis.UDPglucose;
u.d. 4-epimerase UDPglucose 4-epimerase

uridine diphosphoglucuronic acid (UDP-GlcUA) uridine diphosphoglucuronic acid (UDP-GlcUA) (yur´i-den-dI-fos´fo-glu-ku-ron´ik)

Uridine diphosphoglucose in which the 6 CH₂OH of the glucose has been oxidized to COOH (has become a glucuronyl residue); participates in the formation of conjugates of bilirubin or drugs such as aspirin.

uridine diphosphoxylose uridine diphosphoxylose

xylose

uridrosis uridrosis (yu-ri-dro´sis)

The excretion of urea or uric acid in the sweat.sudor urinosus, urhidrosis; [uri- + G. hidros, sweat]
u. crystalli´na urea frost

uridylic acid uridylic acid (yur-i-dil´ik)

Uridine esterified by phosphoric acid on one or more sugar hydroxyl groups; UMP is typically uridine 5´-monophosphate; 2´ and 3´ derivatives also occur; precursor for the biosynthesis of other pyrimidine nucleotides.UMP synthase, uridine 5´-monophosphate;
u.a. synthase a bifunctional enzyme that contains the activities of both orotate phosphoribosyltransferase and orotidine-5´-monophosphate decarboxylase; catalyzes a key step in pyrimidine biosynthesis; a deficiency of this enzyme leads to orotic aciduria.

uridyltransferase uridyltransferase (yur´i-dil-trans´fer-as)

UDPglucose-hexose-1-phosphate; uridylyltransferase.

uriesthesia uriesthesia (yuri-es-the´ze-a)

uresiesthesia

urin- urin- , urino-

Urine. See also ure-, uro-. [G. ouron]

urinal urinal (yu´rin-al)

A vessel into which urine is passed.

urinalysis urinalysis (yu-ri-nal´i-sis)

Analysis of the urine.

urinary urinary (yur´i-nar-e)

Relating to urine.

urinate urinate (yur´i-nat)

To pass urine.micturate;

urination urination (yur´i-na´shun)

The passing of urine.miction, micturition (1), uresis;
stuttering u. the passage of urine in jets caused by intermittent spasmodic contraction of the bladder.

urine urine (yur´in)

The fluid and dissolved substances excreted by the kidney. [L. urina; G. ouron]
ammoniacal u. ammoniuria
black u. the dark u. of melanuria or hemoglobinuria.
chylous u. u. of a milky appearance, containing chyle.milky u;
cloudy u. u. with a cloudy appearance, usually due to pus, crystals, bacteria, blood, or free fat globules.nebulous u;
crude u. pale u. of low specific gravity, with very little sediment.
febrile u. dark colored, concentrated u. of strong odor, passed by one suffering from fever.feverish u;
feverish u. febrile u
gouty u. u. of a high color containing uric acid in excess.
honey u. obsolete term for diabetes mellitus.
maple syrup u. See maple syrup urine disease.
milky u. chylous u
nebulous u. cloudy u
residual u. u. remaining in the bladder at the end of micturition in cases of prostatic obstruction, bladder atony, etc.

urinemia urinemia (yur-i-ne´me-a)

Obsolete term for uremia.

uriniferous uriniferous (yur-i-nif´e-rus)

Conveying urine; denoting the tubules of the kidney. [urine + L. fero, to carry]

urinific urinific (yur-i-nif´ik)

uriniparous [urine + L. facio, to make]

uriniparous uriniparous (yur-i-nip´a-rus)

Producing or excreting urine; denoting the malpighian bodies and certain tubules in the renal cortex.urinific; [urine + L. pario, to produce]

urino- urino-

See urin-.

urinogenital urinogenital (yur´i-no-jen´i-tal)

genitourinary

urinogenous urinogenous (yur-i-noj´e-nus)

1. Producing or excreting urine. 2. Of urinary origin.urogenous;

urinoma urinoma (yur´i-no´ma)

A cystic collection of extravasated urine.

urinometer urinometer (yur-i-nom´e-ter)

A hydrometer for determining the specific gravity of the urine.urogravimeter, urometer; [urine + G. metron, measure]

urinometry urinometry (yur-i-nom´e-tre)

The determination of the specific gravity of the urine.

urinoscopy urinoscopy (yur-i-nos´ko-pe)

uroscopy

urinosexual urinosexual (yur-i-no-sek´shu-al)

genitourinary

urinous urinous (yur´i-nus)

Relating to or of the nature of urine.

uriposia uriposia (yur-i-po´se-a)

Urine-drinking. [urine + G. posis, drinking]

uritis uritis (yu-rI´tis)

dermatitis ambustionis [L. uro, pp. ustus, to singe, burn, + G. -itis, inflammation]

uro- uro-

Urine. See also ure-, urin-. [G. ouron]

uroammoniac uroammoniac (yu-ro-a-mo´ne-ak)

Relating to uric acid and ammonia; denoting a variety of urinary calculus.

uroanthelone uroanthelone (yur-o-an´the-lon)

urogastrone

urobilin urobilin (yur-o-bI´lin, -bil´in)

A uroporphyrin; an acyclic tetrapyrrole that is one of the natural breakdown products of heme via choleglobin, verdohemochrome, biliverdin, bilirubin, and d-urobilinogen; a urinary pigment that gives a varying orange-red coloration to urine according to its degree of oxidation.urohematin, urohematoporphyrin;

urobilin IX-a urobilin IX-a

mesobilene

urobilinemia urobilinemia (yu´ro-bil-i-ne´me-a)

The presence of urobilins in the blood.

urobilinogen urobilinogen (yur-o-bI-lin´o-jen)

Precursor of urobilin.

urobilinogen IXa urobilinogen IXa

mesobilane

urobilinuria urobilinuria (yu´ro-bil-i-nu´re-a)

The presence in the urine of urobilins in excessive amount, formed mainly from hemoglobin.

urocanase urocanase (yu´ro-ka-nas)

urocanate hydratase

urocanate urocanate (yur´o-ka-nat)

A salt or ester of urocanic acid.
u. hydratase an enzyme catalyzing the reaction of water with urocanic acid to produce 4-imidazolone-5-propionic acid, a step in l-histidine catabolism; this enzyme is absent in cases of urocanic aciduria.urocanase;

urocanic acid urocanic acid (yur-o-kan´ik)

4-Imidazoleacrylic acid;an acid derived from the oxidative deamination of l-histidine; present in sweat and in dog's urine; elevated levels are observed in cases of urocanate hydratase deficiency.

urocanic aciduria urocanic aciduria (ur´o-kan´ik-as´id-yur´e-a)

Elevated levels of urocanic acid in the urine.

urocanicase urocanicase (yur-o-kan´i-kas)

One of a group of at least three enzymes that convert urocanic acid to glutamic acid.

urocele urocele (yu´ro-sel)

Extravasation of urine into the scrotal sac. [uro- + G. kele, hernia]

urocheras urocheras (yu-rok´er-as)

1. gravel 2. uropsammus (2) [uro- + G. cheras, gravel (an incorrect form of cherados, gravel)]

urochesia urochesia (yu-ro-ke´ze-a)

Passage of urine from the anus. [uro- + G. chezo, to defecate]

urochrome urochrome (yur´o-krom)

The principal pigment of urine, a compound of urobilin and a peptide of unknown structure.urian;

urochromogen urochromogen (yur-o-kro´mo-jen)

Originally, a body in the urine that, on taking up oxygen, formed urochrome; now, probably urobilinogen.

urocrisia urocrisia (yu-ro-kris´e-a, -kriz´e-a)

1. urocrisis 2. Obsolete term for diagnosis based upon the results of a urinary examination. [uro- + G. krino, to separate, judge]

urocrisis urocrisis (yu´ro-krI´sis)

1. Obsolete term for the critical stage of a disease accompanied by a copious discharge of urine. 2. Severe pain in any of the urinary organs or passages occurring in tabes dorsalis.urocrisia (1); [uro- + G. krisis, crisis]

urocyanin urocyanin (yu´ro-sI´a-nin)

An indigo blue pigment sometimes observed in the urine in certain diseases, especially scarlet fever.uroglaucin; [uro- + G. kyanos, a blue substance]

urocyanogen urocyanogen (yu-ro-sI-an´o-jen)

A blue pigment sometimes observed in the urine in cases of cholera.

urocyanosis urocyanosis (yu´ro-sI-a-no´sis)

A bluish discoloration of the urine in indicanuria.

urocyst urocyst (yu´ro-sist)

urinary bladder [uro- + G. kystis, bladder]

urocystic urocystic (yu´ro-sis´tik)

Relating to the urinary bladder.

urocystis urocystis (yu´ro-sis´tis)

urinary bladder

urodynamics urodynamics (yu´ro-dI-nam´iks)

The study of the storage of urine within, and the flow of urine through and from, the urinary tract. [uro- + G. dynamis, force]

urodynia urodynia (yur-o-din´e-a)

Pain on urination. [uro- + G. odyne, pain]

uroenterone uroenterone (yur-o-en´ter-on)

urogastrone

uroerythrin uroerythrin (yu-ro-er´i-thrin)

A urinary pigment that gives a pink color to deposits of urates; presumably derived from melanin.purpurin (1), urerythrin;

uroflavin uroflavin (yur-o-fla´vin)

A fluorescent product of riboflavin catabolism, or perhaps riboflavin itself, found in mammalian urine and feces.

uroflowmeter uroflowmeter (yu-ro´flo-me-ter)

A device that measures urine flow rates during micturition, including these parameters: peak flow rate, average flow rate, voided volume, and time of voiding.

urofollitropin urofollitropin (yur-o-fol´i-tro-pin)

A preparation of gonadotropin extracted from the urine of postmenopausal women, used in conjunction with human chorionic gonadotropin to induce ovulation. See also menotropins.

urofuscohematin urofuscohematin (yu-ro-fus-ko-he´ma-tin)

A brownish red pigment found in the urine in a case of leprosy.

urogastrone urogastrone (yur-o-gas´tron)

A fluorescent pigment extracted from urine; an inhibitor of gastric secretion and motility. Cf. enterogastrone. anthelone U, anthelone, uroanthelone, uroenterone;

urogenital urogenital (yu´ro-jen´i-tal)

genitourinary

urogenous urogenous (yu-roj´e-nus)

urinogenous

uroglaucin uroglaucin (yu-ro-glaw´sin)

urocyanin [uro- + G. glaukos, bluish gray]

urogonadotropin urogonadotropin (yur´o-go-nad-o-tro´pin)

See human menopausal gonadotropin.

urograffin urograffin (yur-o-graf´fin)

A mixture of salts of diatrizoic acid used to form density gradients.

urogram urogram (yur´o-gram)

The radiographic record obtained by urography.

urography urography (yu-rog´ra-fe)

Radiography of any part (kidneys, ureters, or bladder) of the urinary tract. See also pyelography. [uro- + G. grapho, to write]
antegrade u. radiography following percutaneous injection of contrast agent with a needle or catheter into the renal calices or pelvis (antegrade pyelography), or into the urinary bladder (antegrade cystography).
cystoscopic u. retrograde u
intravenous u. , excretory u. radiography of kidneys, ureters, and bladder following injection of contrast medium into a peripheral vein.
retrograde u. radiography of the urinary tract following injection of contrast medium directly into the bladder, ureter, or renal pelvis.cystoscopic u;

urogravimeter urogravimeter (yu´ro-gra-vim´e-ter)

urinometer [uro- + L. gravis, heavy, + G. metron, measure]

urohematin urohematin (yur-o-hem´a-tin)

urobilin

urohematoporphyrin urohematoporphyrin (yur´o-hem´a-to-por´fi-rin)

urobilin

uroheparin uroheparin (yur-o-hep´a-rin)

An inactive form of heparin excreted in the urine.

urohypertensin urohypertensin (yur´o-hI-per-ten´sin)

A pressor substance derived from the urine.

urokinase urokinase (yur-o-kI´nas)

plasminogen activator

urolagnia urolagnia (yur-o-lag´ne-a)

Sexual stimulation occasioned by the sight of a person urinating. [uro- + G. lagneia, lust]

uroleucinic acid uroleucinic acid , uroleucic acid (yu´ro-lu-sin´ik, yu-ro-lu´sik)

An aromatic compound, C₉H₁₀O₅, excreted in the urine of persons with alcaptonuria.

urolith urolith (yu´ro-lith)

urinary calculus [uro- + G. lithos, stone]

urolithiasis urolithiasis (yu-ro-li-thI´a-sis)

Presence of calculi in the urinary system.

urolithic urolithic (yu-ro-lith´ik)

Relating to urinary calculi.

urolithology urolithology (yu´ro-li-thol´o-je)

The branch of medicine concerned with the formation, composition, effects, and removal of urinary calculi. [uro- + G. lithos, stone, + logos, study]

urologic urologic , urological (yu-ro-loj´ik, i-kal)

Relating to urology.

urologist urologist (yu-rol´o-jist)

A specialist in urology.

urology urology (yu-rol´o-je)

The medical specialty concerned with the study, diagnosis, and treatment of diseases of the genitourinary tract. [uro- + G. logos, study]

urolutein urolutein (yu-ro-lu´te-in)

Name given to yellow pigment in the urine. See urochrome, uroporphyrin (1).

uromelanin uromelanin (yur-o-mel´a-nin)

A black pigment occasionally found in the urine, possibly a decomposition product of urochrome.

urometer urometer (yu-rom´e-ter)

urinometer

uroncus uroncus (yu-rong´kus)

A urinary cyst; a circumscribed area of extravasation of urine. [uro- + G. onkos, mass (tumor)]

uronephrosis uronephrosis (yu´ro-ne-fro´sis)

hydronephrosis

uronic acids uronic acids (yu-ron´ik)

Acids derived from monosaccharides by oxidation of the primary alcohol group (-CH₂OH) farthest removed from the carbonyl group to a carboxyl group (-COOH); e.g., glucuronic acid.

uronoscopy uronoscopy (yu-ro-nos´ko-pe)

uroscopy

uropathy uropathy (yu-rop´a-the)

Any disorder involving the urinary tract. [uro- + G. pathos, suffering]
obstructive u. any pathologic condition, anatomic or functional, of the urinary tract caused by obstruction.

urophanic urophanic (yur-o-fan´ik)

Appearing in the urine; denoting any constituent, normal or pathologic, of the urine. [uro- + G. phaino, to appear]

urophein urophein (yu-ro-fe´in)

A grayish pigment occasionally found in the urine, possibly identical with urobilin. [uro- + G. phaios, gray]

uropoiesis uropoiesis (yu´ro-poy-e´sis)

The production or secretion and excretion of urine. [uro- + G. poiesis, a making]

uropoietic uropoietic (yu´ro-poy-et´ik)

Relating or pertaining to uropoiesis.

uroporphyrin uroporphyrin (yur-o-por´fi-rin)

1. Porphyrin excreted in the urine in porphyrinuria; e.g., urobilin. 2. Class name for all porphyrins containing 4 acetic acid groups and 4 propionic acid groups in positions 1 through 8. See also porphyrinogens.
u. I porphin-1,3,5,7-tetraacetic acid-2,4,6,8-tetrapropionic acid;formed by the action of light on uroporphyrinogen I; elevated levels observed in certain porphyrias.
u. III porphin-1,3,5,8-tetraacetic acid-2,4,6,7-tetrapropionic acid;formed by the action of light on uroporphyrinogen III; elevated levels observed in certain porphyrias.

uroporphyrinogen uroporphyrinogen (yur´o-por-fi-rin´o-jen)

See porphyrinogens.
u. decarboxylase an enzyme that participates in heme biosynthesis; it catalyzes the decarboxylation of u. III to produce coproporphyrinogen III; it also acts on u. I; a deficiency of this enzyme will result in either porphyria cutanea tarda or hepatoerythropoietic porphyria.
u. III cosynthase an enzyme in heme biosynthesis that participates in the formation of u. III; a deficiency of this protein results in congenital erythropoietic porphyria.

uropsammus uropsammus (yu-ro-sam´us)

1. gravel 2. Any inorganic or uratic urinary sediment.urocheras (2); [uro- + G. psammos, sand]

uropterin uropterin (yu-rop´ter-in)

urothion

uropurpurin uropurpurin (yur-o-pur´pur-in)

A purple pigment in the urine.

uroradiology uroradiology (yu´ro-ra-de-ol´o-je)

The study of the radiology of the urinary tract.

urorectal urorectal (yu´ro-rek´tal)

Relating to the urinary tract and rectum.

urorosein urorosein (yur-o-ro´ze-in)

A chromogen in the urine that forms a red color on the addition of nitric acid; normally exists in very minute quantities but is increased in tuberculosis and other wasting diseases, and is related to ingestion of indole compounds.

urorubin urorubin (yur-o-ru´bin)

A red pigment in urine made more visible by treatment with hydrochloric acid.

urorubrohematin urorubrohematin (yur´o-ru-bro-he´ma-tin)

A reddish pigment occasionally present in the urine in various chronic diseases.

uroschesis uroschesis (yu-ros´ke-sis)

1. Retention of urine. 2. Suppression of urine. [uro- + G. schesis, a checking]

uroscopic uroscopic (yur-o-skop´ik)

Relating to uroscopy.

uroscopy uroscopy (yu-ros´ko-pe)

Examination of the urine, usually by means of a microscope.urinoscopy, uronoscopy; [uro- + G. skopeo, to view]

urosemiology urosemiology (yu´ro-sem-e-ol´o-je)

The study of the urine as an aid to diagnosis. [uro- + G. semeion, a sign, + logos, study]

urosepsin urosepsin (yur-o-sep´sin)

A substance formed by the decomposition of urine, supposed to be the cause of septic poisoning after urinary extravasation.

urosepsis urosepsis (yur-o-sep´sis)

1. Sepsis resulting from the decomposition of extravasated urine. 2. Sepsis from obstruction of infected urine. [uro- + G. sepsis, decomposition]

urospectrin urospectrin (yur-o-spek´trin)

A pigment found in the urine, possibly the same as urobilin.

urothelium urothelium (yu-ro-the´le-um)

The epithelial lining of the urinary tract. [uro- + epithelium]

urothion urothion (yur-o-thI´on)

A sulfur-containing pteridine derivative isolated from urine.uropterin;

urothorax urothorax (yur-o-thor´aks)

The presence of urine in the thoracic cavity, usually following complex multiple organ injuries.

uroxanthin uroxanthin (yur-o-zan´thin)

indican (2)

uroxin uroxin (yu-rok´sin)

alloxantin

urtica urtica (er-tI´ka, er´ti-)

The herb, Urtica dioica (family Urticaceae); a weed, the leaves of which produce a stinging sensation when touching the skin. It has been used as a diuretic and hemostatic in metrorrhagia, epistaxis, and hematemesis.nettle; [L. a nettle, fr. uro, pp. ustus, to burn]

urticant urticant (er´ti-kant)

Producing a wheal or other similar itching agent. [L. urtica, nettle; see urtica]

urticaria urticaria (er´ti-kar´i-a)

An eruption of itching wheals, usually of systemic origin; it may be due to a state of hypersensitivity to foods or drugs, foci of infection, physical agents (heat, cold, light, friction), or psychic stimuli.hives (1), uredo (1), urtication (3); [L. urtica]
acute u. febrile u
u. acu´ta febrile u
u. bullo´sa an eruption of wheals capped with subepidermal vesicles.u. vesiculosa;
cholinergic u. a form of physical or non-allergic u. initiated by heat (e.g., hot baths, physical exercise, pyrexia, exposure to sun or to a warm room) or by excitement; the rather distinctive lesions consist of pruritic areas 1 to 2 mm in diameter surrounded by bright red macules.heat u;
chronic u. a form of u. in which the wheals recur frequently, or persist.u. chronica;
u. chron´ica chronic u
cold u. wheal formation that develops after exposure to lowered temperatures, with or without demonstrable passive-transfer antibodies.congelation u;
u. confer´ta a form of u. in which the wheals are aggregated in a group.
congelation u. cold u
u. endem´ica , u. epidem´ica u. caused by the nettling hairs of certain caterpillars.
u. facti´tia dermatographism
factitious u. dermatographism
febrile u. u. accompanied by slight constitutional symptoms.acute u., u. acuta, u. febrilis;
u. febri´lis febrile u
giant u. angioedema
heat u. cholinergic u
u. hemorrhag´ica u. bullosa in which the serous exudate contains blood.
u. maculo´sa a chronic form of u. with lesions of a red color and little edema.
u. medicamento´sa an urticarial form of drug eruption.
papular u. a sensitivity reaction to insect bites, especially human and pet fleas, seen mostly in young children as wheals followed by papules on exposed areas.lichen urticatus, prurigo infantilis, u. papulosa;
u. papulo´sa papular u
u. per´stans a form of chronic u. in which the wheals persist unchanged for long periods; includes urticarial vasculitis.
u. pigmento´sa cutaneous mastocytosis resulting from an excess of mast cells in the superficial dermis, producing a chronic eruption characterized by flat or slightly elevated brownish papules which urticate when stroked. The disease in children frequently involutes spontaneously whereas resolution is rare with adult onset and there may be systemic lesions.
urticaria u. diffuse cutaneous mastocytosis
pressure u. u. of unknown etiology occurring after local pressure on the skin.
solar u. a form of u. resulting from exposure to specific light spectra; e.g., sunlight; some patients have passive-transfer antibodies and others do not.
u. subcuta´nea u. in which itching is present without the wheals.
u. tubero´sa angioedema
u. vesiculo´sa u. bullosa
vibratory u. a form of u. that occurs in response to vibratory stimuli.

urticarial urticarial , urticarious (er-ti-kar´e-al, -kar´e-us)

Relating to or marked by urticaria.

urticate urticate (er´ti-kat)

1. To perform urtication. 2. Marked by the presence of wheals. [L. urticatus]

urtication urtication (er-ti-ka´shun)

1. Whipping with nettles to induce counterirritation, formerly used in the treatment of peripheral paralysis. 2. A burning sensation resembling that produced by urticaria or resulting from nettle poisoning. 3. urticaria [L. urticatio]

urushiol urushiol (u´ru-she-ol)

A mixture of nonvolatile hydrocarbons, derivatives of catechol with unsaturated C₁₅ or C₁₇ side chains, constituting the active allergen of the irritant oil of poison ivy, Toxicodendron radicans, poison oak, T. diversilobum, and the Asiatic laquer tree, T. verniciferum. [Jap. urushi, lac, + L. oleum, oil]
u. oxidase laccase

USAN USAN

Abbreviation for United States Adopted Names.

Usher Usher

Charles Howard, English ophthalmologist, 1865-1942. See U.'s syndrome.

Usher Usher

Barney, Canadian dermatologist, *1899. See Senear-U. disease, syndrome.

USP USP

Abbreviation for United States Pharmacopeia. See Pharmacopeia.

USPHS USPHS

Abbreviation for United States Public Health Service.

ustilaginism ustilaginism (us-ti-laj´i-nizm)

Poisoning by Ustilago maydis (corn smut), which produces burning, itching, hyperemia, acrocyanosis, and edema of the extremities; resembles ergotism, pellagra, or infantile acrocynia.

Ustilago Ustilago (us-ti-la´go)

A genus of smuts (order Ustilaginales). [L. a kind of thistle, fr. ustio, a burning]
U. may´dis a species that resembles ergot of rye in its metabolic action; its black spores on the ears of corn are dispersed by wind and can cause contamination of laboratory cultures.corn ergot, corn smut, U. zeae;
U. ze´ae U. maydis

ustulation ustulation (us-tyu-la´shun)

1. Separation of compounds by heat, as in the process of freeing ores from sulfur by roasting. 2. Drying of a drug by heat to prepare it for pulverization. [L. ustulo, pp. -atus, to scorch]

usurpation usurpation (yu´ser-pa´shun)

Assumption of pacemaker function of the heart by a subsidiary focus as a result of its own increased automaticity; e.g., accelerated junctional pacemaker takes command when it exceeds the sinus rate. [L. usurpo, pp. -atus, to seize]

uta uta (u´ta)

A mild form of New World or American cutaneous leishmaniasis caused by Leishmania peruana, occurring in the high Andean valleys of Peru and Bolivia, and characterized by numerous small dermal lesions occurring almost exclusively on exposed skin surfaces; the dog is an important reservoir. Unlike all other forms of American cutaneous leishmaniasis, this disease is found at high elevations (2000 to 2500 m) in barren open country, rather than in lowland tropical forests. [Sp.]

uter- uter-

See utero-.

uterectomy uterectomy (yu-te-rek´to-me)

hysterectomy

uterine uterine (yu´ter-in, yu´ter-In)

Relating to the uterus.

uterismus uterismus (yu-te-riz´mus)

Obsolete term for painful spasmodic contraction of the uterus. [uter- + L. -ismus, action or condition, fr. G. -ismos]

uteritis uteritis (yu-te-rI´tis)

metritis

in utero in utero (in yu´ter-o)

Within the womb; not yet born. [L.]

utero- utero- , uter-

The uterus. See also hystero- (1), metr-. [L. uterus]

uteroabdominal uteroabdominal (yu´ter-o-ab-dom´i-nal)

Relating to the uterus and the abdomen.uteroventral;

uterocervical uterocervical (yu´ter-o-ser´vi-kal)

Relating to the cervix of the uterus.

uterocystostomy uterocystostomy (yu´ter-o-sis-tos´to-me)

Formation of a communication between the uterus (cervix) and the bladder. [utero- + G. kystis, bladder, + stoma, mouth]

uterofixation uterofixation (yu´ter-o-fik-sa´shun)

hysteropexy

uterolith uterolith (yu´ter-o-lith)

uterine calculus [utero- + G. lithos, stone]

uterometer uterometer (yu-ter-om´e-ter)

hysterometer

utero-ovarian utero-ovarian (yu´ter-o-o-var´e-an)

Relating to the uterus and an ovary.

uteroparietal uteroparietal (yu´ter-o-pa-rI´e-tal)

Relating to the uterus and the abdominal wall.

uteropelvic uteropelvic (yu´ter-o-pel´vik)

Relating to the uterus and the pelvis.

uteropexy uteropexy (yu´ter-o-pek-se)

hysteropexy

uteroplacental uteroplacental (yu´ter-o-pla-sen´tal)

Relating to the uterus and the placenta.

uteroplasty uteroplasty (yu´ter-o-plas-te)

Plastic surgery of the uterus.hysteroplasty, metroplasty; [utero- + G. plastos, formed]

uterosacral uterosacral (yu´ter-o-sa´kral)

Relating to the uterus and the sacrum.

uterosalpingography uterosalpingography (yu´ter-o-sal-pin-gog´ra-fe)

hysterosalpingography

uteroscope uteroscope (yu´ter-o-skop)

hysteroscope

uteroscopy uteroscopy (yu-ter-os´ko-pe)

hysteroscopy

uterotomy uterotomy (yu-ter-ot´o-me)

hysterotomy

uterotonic uterotonic (yu´ter-o-ton´ik)

1. Giving tone to the uterine muscle. 2. An agent that overcomes relaxation of the muscular wall of the uterus. [utero- + G. tonos, tone, tension]

uterotropic uterotropic (yu´ter-o-tro´pik)

Causing an effect on the uterus.

uterotubal uterotubal (yu´ter-o-tu´bal)

Pertaining to the uterus and the uterine tubes.

uterotubography uterotubography (yu´ter-o-tu-bog´ra-fe)

hysterosalpingography

uterovaginal uterovaginal (yu-ter-o-vaj´i-nal)

Relating to the uterus and the vagina.

uteroventral uteroventral (yu´ter-o-ven´tral)

uteroabdominal [utero- + L. venter, belly]

uteroverdine uteroverdine (yu´ter-o-ver´din)

Biliverdin from dog placenta.

uterovesical uterovesical (yu´ter-o-ves´i-kal)

Relating to the uterus and the urinary bladder.

uterus uterus, pl. uteri (yu´ter-us, yu´ter-I) [NA]

The hollow muscular organ in which the impregnated ovum is developed into the child; it is about 7.5 cm in length in the nonpregnant woman, and consists of a main portion (body) with an elongated lower part (neck), at the extremity of which is the opening (os). The upper rounded portion of the u., opposite the os, is the fundus, at each extremity of which is the horn marking the part where the uterine tube joins the u. and through which the ovum reaches the uterine cavity after leaving the ovary. The organ is supported in the pelvic cavity by the broad ligaments, round ligaments, cardinal ligaments, and rectouterine and vesicouterine folds or ligaments.metra, womb; [L.]
u. acol´lis a u. with atresia or absence of the cervix.
anomalous u. a malformed u. caused by abnormal development or fusion of the paramesonephric ducts.
arcuate u. a u. with a depression at the fundus; an incomplete u. bicornis.u. arcuatus;
u. arcua´tus arcuate u
bicornate u. a u. that is more or less completely divided into two lateral horns as a result of imperfect fusion of the paramesonephric ducts; it differs from septate u., in which there is no external mark of separation; in u. bicornis, the cervix may be single (u. bicornate unicollis) or double (u. bicornate bicollis).bifid u., u. bicornis, u. bifidus;
u. bicornate bicollis See bicornate u.
u. bicornate unicollis See bicornate u.
u. bicor´nis bicornate u
bifid u. bicornate u
u. bi´fidus bicornate u
biforate u. septate u. in which the cervix is divided into two by a septum.double-mouthed u., u. biforis;
u. bifor´is biforate u
u. bilocula´ris septate u
u. biparti´tus septate u
bipartite u. septate u
capped u. a condition of tonic contraction of the fundus musculature of the u.
cordiform u. an incomplete u. bicornis with a wedge-shaped depression at the fundus.heart-shaped u., u. cordiformis;
u. cordiform´is cordiform u
Couvelaire u. extravasation of blood into the uterine musculature and beneath the uterine peritoneum in association with severe forms of abruptio placentae.uteroplacental apoplexy;
u. didel´phys double u. with double cervix and double vagina; due to failure of the paramesonephric ducts to unite. [G. di-, two, + delphys, womb]
double-mouthed u. biforate u
duplex u. any u. with double lumen (u. didelphys, u. bicornis bicollis, or septate u.).u. duplex;
u. du´plex duplex u
gravid u. the condition of the u. in pregnancy.
heart-shaped u. cordiform u
incudiform u. u. bicornis in which the fundus between the two cornua is broad and flat.triangular u., u. incudiformis, u. triangularis;
u. incudiform´is incudiform u
masculine u. prostatic utricle
u. masculi´nus prostatic utricle
one-horned u. obsolete term for unicorn u.
u. parvicol´lis a u. of normal size with an abnormal, disproportionately small cervix.
septate u. a u. divided into two cavities by an anteroposterior septum.bipartite u., u. bilocularis, u. bipartitus, u. septus;
u. sep´tus septate u
subseptate u. an incomplete u. septus.u. subseptus;
u. subsep´tus subseptate u
triangular u. incudiform u
u. triangula´ris incudiform u
unicorn u. a u. in which only one lateral half exists, the other half being undeveloped or absent.u. unicornis;
u. unicor´nis unicorn u

UTI UTI

Abbreviation for urinary tract infection.

utility utility

In biomedical ethics and clinical decision analysis, the satisfaction or economic advantage gained from the outcome that results from a particular decision.

UTP UTP

Abbreviation for uridine 5´-triphosphate.

utricle utricle (yu´tri-kl)

The larger of the two membranous sacs in the vestibule of the labyrinth, lying in the elliptical recess; from it arise the semicircular ducts.utriculus [NA], sacculus communis;
prostatic u. a minute pouch in the prostate opening on the summit of the seminal colliculus, the analogue of the uterus and vagina in the female, being the remains of the fused caudal ends of the paramesonephric ducts.utriculus prostaticus [NA], masculine uterus, Morgagni's sinus (2), sinus pocularis, uterus masculinus, vagina masculina, vesica prostatica, Weber's organ;

utricular utricular (yu-trik´yu-lar)

Relating to or resembling a utricle.

utriculi utriculi (yu-trik´yu-lI)

Plural of utriculus.

utriculitis utriculitis (yu-trik-yu-lI´tis)

1. Inflammation of the internal ear. 2. Inflammation of the prostaticutricle. [utriculus + G. -itis, inflammation]

utriculosaccular utriculosaccular (yu-trik´yu-lo-sak´yu-lar)

Relating to the utricle and the saccule of the labyrinth, denoting especially a duct connecting the two structures.

utriculus utriculus, pl. utriculi (yu´trik´yu-lus, -lI) [NA]

utricle See also vestibular organ. [L. dim. of uter, leather bag]
u. prostat´icus [NA] prostatic utricle

utriform utriform (yu´tri-form)

Shaped like a leather bottle (wineskin). [L. uter, a skin bag, + forma, form]

UV UV , uv

Abbreviation for ultraviolet.

UVA UVA

Abbreviation for ultraviolet A.

uvaeformis uvaeformis (yu-ve-for´mis)

vascular lamina of choroid [L. uva, grape, + forma, form]

uva ursi uva ursi (u´va er´sI)

The dried leaves of Arctostaphylos uva-ursi (family Ericaceae), bearberry, mountain box, a common plant of the north temperate zone; contains antiseptic glycosides, arbutin, methylarbutin, and tannins; has been used in chronic inflammations of the urinary tract. [L. uva, grape + ursus, bear]

UVB UVB

Abbreviation for ultraviolet B.

UVC UVC

Abbreviation for ultraviolet C.

uvea uvea (yu´ve-a)

vascular tunic of eye [L. uva, grape]

uveal uveal (yu´ve-al)

Relating to the uvea.

UVEB UVEB

Abbreviation for unifocal ventricular ectopic beat.

uveitic uveitic (yu-ve-it´ik)

Relating to the uvea.

uveitides uveitides (yu-ve-it´i-dez)

Plural of uveitis.

uveitis uveitis, pl. uveitides (yu-ve-I´tis, -it´I-dez)

Inflammation of the uveal tract: iris, ciliary body, and choroid. [uvea + G. -itis, inflammation]
anterior u. inflammation involving the ciliary body and iris.
Förster's u. syphilitic inflammation, with diffuse nodules involving the choroid and retinal vasculitis.
Fuchs' u. heterochromic u
heterochromic u. anterior uveitis and depigmentation of the iris.Fuchs' u;
intermediate u. a u. that is neither anterior nor posterior but tends to involve the pars plana and the ciliary body.
lens-induced u. phacoanaphylactic u
phacoanaphylactic u. intraocular inflammation occurring after extracapsular cataract extraction;probably an immune reaction to the patient's liberated lenticular proteins.lens-induced u;
phacogenic u. u. secondary to hypermature cataract.
posterior u. choroiditis
sympathetic u. a bilateral inflammation of the uveal tract caused by a perforating wound of one eye that injures the uvea.

uveoencephalitis uveoencephalitis (yu´ve-o-en-sef-a-lI´tis)

Harada's syndrome

uveoscleritis uveoscleritis (yu´ve-o-skle-rI´tis)

Inflammation of the sclera involved by extension from the uvea.

uviform uviform (yu´vi-form)

botryoid [L. uva, grape, + forma, form]

uviofast uviofast (yu´ve-o-fast)

Not weakened or destroyed by subjection to ultraviolet radiation.uvioresistant; [uviol (ultraviolet), + fast]

uviol uviol (yu´ve-ol)

A special kind of glass more than usually transparent to ultraviolet or actinic rays, e.g., crystallinequartz. [ultraviolet]

uviometer uviometer (yu-ve-om´e-ter)

An instrument for measuring ultraviolet radiation. [uviol (ultraviolet), + meter]

uvioresistant uvioresistant (yu´ve-o-re-zis´tant)

uviofast

uviosensitive uviosensitive (yu´ve-o-sen´si-tiv)

Sensitive to ultraviolet rays. [uviol (ultraviolet) + sensitive]

uvomorulin uvomorulin (yu-vo-mo´ru-lin)

A transmembrane protein that links plasma membranes of adjacent cells together in a Ca²⁺-dependent manner; aids in maintaining the rigidity of the cell layer.E-cadherin; [L. uva, bunch of grapes, + Mod. L. morula, dim. of L. morum, fr. G. moron, mulberry, + -in]

uvul- uvul-

See uvulo-.

uvula uvula, pl. uvuli (yu´vyu-la, -lI) [NA]

An appendant fleshy mass; a structure bearing a fancied resemblance to the palatine u. [Mod. L. dim. of L. uva, a grape, the uvula]
bifid u. bifurcation of the u., constituting a partially cleft soft palate.
u. of bladder a slight projection into the cavity of the bladder, usually more prominent in old men, just behind the urethral opening, marking the location of the middle lobe of the prostate.u. vesicae [NA], Lieutaud's u;
u. cerebel´li u. vermis
Lieutaud's u. u. of bladder
u. palati´na [NA] palatine u
palatine u. a conical projection from the posterior edge of the middle of the soft palate, composed of connective tissue containing a number of racemose glands, and some muscular fibers (uvulae muscle).u. palatina [NA], pendulous palate;
u. ver´mis [NA] a triangular elevation on the vermis of the cerebellum, lying between the two tonsils anterior to the pyramis.u. cerebelli;
u. vesi´cae [NA] u. of bladder

uvulaptosis uvulaptosis (yu´vyu-lap-to´sis)

uvuloptosis

uvular uvular (yu´vyu-lar)

Relating to the uvula.

uvularis uvularis (yu´vyu-la´ris)

uvulae muscle

uvulatome uvulatome (yu´vyu-la-tom)

uvulotome

uvulectomy uvulectomy (yu-vyu-lek´to-me)

Excision of the uvula.staphylectomy; [uvula + G. ektome, excision]

uvulitis uvulitis (yu-vyu-lI´tis)

Inflammation of the uvula.

uvulo- uvulo- , uvul-

The uvula, usually the uvula palatina. See also staphylo-. [L. uvula]

uvulopalatopharyngoplasty uvulopalatopharyngoplasty (-pal´a-to-fa-rin´go-plas-te)

palatopharyngoplasty

uvulopalatoplasty uvulopalatoplasty (yu´vyu-lo-pal´a-to-plas-te)

palatopharyngoplasty

uvuloptosis uvuloptosis (yu´vyu-lop-to´sis)

Relaxation or elongation of the uvula.falling palate, staphylodialysis, staphyloptosis, uvulaptosis; [uvulo- + G. ptosis, a falling]

uvulotome uvulotome (yu´vyu-lo-tom)

An instrument for cutting the uvula.uvulatome;

uvulotomy uvulotomy (yu-vyu-lot´o-me)

Any cutting operation on the uvula. [uvulo- + G. tome, a cutting]