/ Dictionary / Index P polyvalent: Meaning and Definition of Find definitions for: pol•y•va•lent Pronunciation: (pol"ē-vā'lunt, pu-liv'u-lunt), [key] — adj. having more than one valence. (of an immune serum) containing several antibodies, each capable of reacting with a specific antigen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: polyvalent (Thesaurus) polyuria polyvinyl 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