/ Dictionary / Index T tervalent: Meaning and Definition of Find definitions for: ter•va•lent Pronunciation: (tûr-vā'lunt), [key] — adj. Chem. trivalent. possessing three different valences, as cobalt with valences 2, 3, and 4. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Tertullian Terylene Related Content Daily Word Quiz: pertinent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language