Chem. [f. CYAN- 2 + -IDE.] A simple compound of cyanogen with a metal or an organic radical, as potassium cyanide (KCy), an extremely poisonous crystalline solid.
1826. Henry, Elem. Chem., I. 458. Cyanide of Iodine.
c. 1865. G. Gore, in Circ. Sc., I. 226/1. The cyanide produced by the fusion of the ferro-cyanide of potassium alone … is termed ‘black cyanide.’
