/ Dictionary / Index T thiophosphate: Meaning and Definition of Find definitions for: thi•o•phos•phate Pronunciation: (thī"ō-fos'fāt), [key] — n. Chem. a salt or ester of thiophosphoric acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thiophenol thiophosphoric acid Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language