/ Dictionary / Index A ammonium stearate: Meaning and Definition of Find definitions for: ammo'nium ste'arate Pronunciation: [key] — Chem. Chem. a tan, waxlike, water-insoluble solid, CHNO, used chiefly in the manufacture of cosmetics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ammonium selenate ammonium sulfate Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language