calcine

v. i. [ imp. & p. p. Calciden p. pr. & vb. n. Calcining. ] [ F. calciner, fr. L. calx, calcis, lime. See Calx. ] [ 1913 Webster ]

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. [ 1913 Webster ]

2. To oxidize, as a metal by the action of heat; to reduce to a metallic calx. [ 1913 Webster ]