/ Dictionary / Index M monovalent: Meaning and Definition of Find definitions for: mon•o•va•lent Pronunciation: (mon"u-vā'lunt), [key] — adj. univalent. containing only one kind of antibody. pertaining to an antibody fragment with one antigen-binding site. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: monovalent (Thesaurus) monounsaturated monovision Related Content Daily Word Quiz: maritime Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language