/ Dictionary / Index M mammonism: Meaning and Definition of Find definitions for: mam•mon•ism Pronunciation: (mam'u-niz"um), [key] — n. the greedy pursuit of riches. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mammon mammoplasty Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language