/ Dictionary / Index P potassium phosphate: Meaning and Definition of Find definitions for: potas'sium phos'phate Pronunciation: [key] — Chem. Chem. any of the three orthophosphates of potassium(KHPO),(KHPO), and(KPO) Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. potassium permanganate potassium sodium tartrate Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language