a rare disorder in which an individual displays several functionally dissociated personalities, each of a complexity comparable to that of a normal individual.
Are You Weird? Personality Idioms ExploredRead more in this article about some frequently asked questions and fun facts related to our definitions.
Origin of multiple personality
First recorded in 1900–05
Also called split personality.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for multiple personality
psychiatry a mental disorder in which an individual's personality appears to have become separated into two or more distinct personalities, each with its own complex organizationNontechnical name: split personality
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012