(genetics) Of corresponding segments of a chromosome in different individuals, identical because they were inherited from a common ancestor without crossover.

(of twins) being the result of two sperm cells fertilizing a single egg, which then splits into two embryos. They share all of the mother's genetic material but only half of the father's.

(genetics) Two identical alleles or two identical segments or sequences of DNA; segments which are not identical by descent and therefore do not share a recent common ancestor

Synonym of semi-identical

plural of non-identical

(psychology) A person's internal sense of self as belonging to a particular gender or genders, or to no gender.

plural of identity theft

A card or badge showing the official identity of the bearer.

(philosophy) The principle that, if two objects are indistinguishable from one another with respect to all of their properties, then they are identical.

(psychology) A crisis of personal identity.