/ Dictionary / Index M monogenism: Meaning and Definition of Find definitions for: mo•nog•e•nism Pronunciation: (mu-noj'u-niz"um), [key] — n. the theory that the human race has descended from a single pair of individuals or a single ancestral type. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monogenic monogenous Related Content Daily Word Quiz: abominable Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language