/ Dictionary / Index M M.M.Sc.: Meaning and Definition of Find definitions for: M.M.Sc. Pronunciation: [key] Master of Medical Science. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. MMPI MMT Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language