/ Dictionary / Index P potassium antimonate: Meaning and Definition of Find definitions for: potas'sium an'timonate Pronunciation: [key] — Chem. Chem. a white, crystalline, slightly water-soluble powder, KSbO, used chiefly as a pigment in paints. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. potassium alum potassium antimonyl tartrate Related Content Daily Word Quiz: loquacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language