/ Dictionary / Index M monopolism: Meaning and Definition of Find definitions for: mo•nop•o•lism Pronunciation: (mu-nop'u-liz"um), [key] — n. the existence or prevalence of monopolies. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monopole monopolist Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language