Phrases such as ``having the same visible attribute values'' and ``having duplicate values'' have been used previously.
The orthogonality criterion (+E1) is satisfied. Further, the concept is a straight-forward generalization of identity of tuples in the snapshot-relational model. There are no competing names (+E3), the name seems open-endend (+E4) and does not appear to have other meanings (+E5). Further, the name is consistent with existing terminology (+E7) and does not violate other criteria.