/ Dictionary / Index P potassium acetate: Meaning and Definition of Find definitions for: potas'sium ac'etate Pronunciation: [key] — Chem. Chem. a white, crystalline, deliquescent, water-soluble powder, KCHO, used chiefly as a reagent in analytical chemistry. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. potassium potassium acid tartrate Related Content Daily Word Quiz: novice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language