/ Dictionary / Index M multiple personality: Meaning and Definition of Find definitions for: mul'tiple personal'ity Pronunciation: [key] a rare disorder in which an individual displays several functionally dissociated personalities, each of a complexity comparable to that of a normal individual. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. multiple neuritis multiple reentry vehicle Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language