/ Dictionary / Index P potassium binoxalate: Meaning and Definition of Find definitions for: potas'sium binox'alate Pronunciation: [key] — Chem. Chem. a white, crystalline, hygroscopic, poisonous solid, KHCO, that is usually hydrated: used chiefly for removing ink stains, cleaning metal and wood, and in photography. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. potassium bichromate potassium bisulfate 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