identity disorder n.
A disorder occurring in late adolescence and characterized by feelings of uncertainty and distress due to issues such as long-term goals, sexual orientation and behavior, morality, and religious identification.
noun, Mathematics. 1. (def 9b). identity element (ī-děn’tĭ-tē) The element of a set of numbers that when combined with another number under a particular binary operation leaves the second number unchanged. For example, 0 is the identity element under addition for the real numbers, since for any real number a, a + 0 = a, […]
noun, Mathematics. 1. (def 9d).
noun, Mathematics. 1. a matrix that has 1 in each position on the main diagonal and 0 in all other positions.
noun, (used with a singular or plural verb) 1. political activity or movements based on or catering to the cultural, ethnic, gender, racial, religious, or social interests that characterize a group identity.
noun 1. the symbol (≡), designating identity, not equality.