multiple personality

multiple personality   n.  A highly disputed psychological disorder in which a person exhibits two or more disassociated personalities, each functioning as a distinct entity. Also called dissociative disorder.

Main Entry: multiple personality
Function: noun
: an hysterical neurosis in which the personality becomes dissociated into two or more distinct but complex and sociallyand behaviorally integrated parts each of which becomes dominant and controls behavior from time to time to the exclusion of the others called also alternating personality, dissociativeidentity disorder; —compare SPLIT PERSONALITY

multiple personality n.
A dissociative disorder in which two or more distinct personalities exist in the same person, each of which prevails at a particular time. Also called split personality.