/ Dictionary / Index A ammonium binoxalate: Meaning and Definition of Find definitions for: ammo'nium binox'alate Pronunciation: [key] — Chem. Chem. a colorless, crystalline, water-soluble, poisonous solid, CHNO&multiplydot;HO, used chiefly for removing ink stains from fabrics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ammonium bifluoride ammonium carbamate Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language