/ Dictionary / Index C calcium cyanamide: Meaning and Definition of Find definitions for: cal'cium cyan'amide Pronunciation: [key] a gray-black, often lumpy powder, CaCN, unstable in water, obtained by heating calcium carbide and nitrogen; cyanamide: used chiefly as a fertilizer, herbicide, and intermediate in the synthesis of nitrogen compounds. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. calcium chloride calcium fluoride Related Content Daily Word Quiz: acerbity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language