/ Dictionary / Index C cream of tartar: Meaning and Definition of Find definitions for: cream' of tar'tar Pronunciation: [key] a white, crystalline, water-soluble powder, CHKO, used chiefly as an ingredient in baking powders and in galvanic tinning of metals. Also calledCf. tartar (def. 3). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cream of coconut cream pail Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language