/ Dictionary / Index C calcium phosphate: Meaning and Definition of Find definitions for: cal'cium phos'phate Pronunciation: [key] any of several phosphates of calcium occurring naturally in some rocks and in animal bones, used as a fertilizer and food additive as well as in baking powder and dentifrices. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. calcium permanganate calcium propionate Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language