Cal*cine" (?), v. i. [imp. & p. p. Calciden (?); p. pr. & vb. n. Calcining.] [F. calciner, fr. L. calx, calcis, lime. See Calx.]

1. To reduce to a powder, or to a friable state, by the action of heat; to expel volatile matter from by means of heat, as carbonic acid from limestone, and thus (usually) to produce disintegration; as to, calcine bones.

2. To oxidize, as a metal by the action of heat; to reduce to a metallic calx.

Cal*cine", v. i. To be converted into a powder or friable substance, or into a calx, by the action of heat. "Calcining without fusion" Newton.