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The Collaborative International Dictionary of English v.0.48 (gcide)

Calcine \Cal*cine"\, 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]