- a white, crystalline, unstable, deliquescent solid, CH2N2, usually produced by the action of ammonia on cyanogen chloride or by the action of sulfuric acid on calcium cyanamide.
- (not in technical use) calcium cyanamide.
- a white or colourless crystalline soluble weak dibasic acid, which can be hydrolysed to urea. Formula: H 2 NCN
- a salt or ester of cyanamide
- short for calcium cyanamide
