/ Dictionary / Index M major histocompatibility complex: Meaning and Definition of Find definitions for: ma'jor his'tocompatibil'ity com"plex Pronunciation: [key] See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. major general majoritarian Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language