/ Dictionary / Index M mammoplasty: Meaning and Definition of Find definitions for: mam•mo•plas•ty Pronunciation: (mam'u-plas"tē), [key] — n. Surg. reconstruction or alteration in size or contour of the female breast. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. mammonism mammoth Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language