/ Dictionary / Index M monacid: Meaning and Definition of Find definitions for: mon•ac•id Pronunciation: (mon-as'id), [key] — adj., n. Chem. monoacid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monachism monacillo Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language