/ Dictionary / Index V vanadate: Meaning and Definition of Find definitions for: van•a•date Pronunciation: (van'u-dāt"), [key] — n. Chem. a salt or ester of a vanadic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vanadate (Thesaurus) van vanadic Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language