(slang) To assume another person's identity, usually to gain access to that person's finances or to frame a person for a crime; to commit identity theft.

plural of mistaken identity

(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.

plural of additive identity

(mathematics, of a function) Being equal to the zero function and not merely zero at a particular point in its domain.

plural of gender identity

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

plural of multiplicative identity

plural of Jacobi identity

plural of right identity