/ Dictionary / Index P potassium bromate: Meaning and Definition of Find definitions for: potas'sium bro'mate Pronunciation: [key] — Chem. Chem. a white, crystalline, water-soluble powder, KBrO, used chiefly as an oxidizing agent and as an analytical reagent. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. potassium bitartrate potassium bromide Related Content Daily Word Quiz: winsome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language