/ Dictionary / Index Q quadrivalent: Meaning and Definition of Find definitions for: quad•ri•va•lent Pronunciation: (kwod"ru-vā'lunt, kwo-driv'u-), [key] — adj. Chem. having a valence of four; tetravalent. exhibiting four different valences, as antimony with valences of 5, 4, 3, and −3. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. quadrisyllable quadrivial Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language