Source : Webster's Revised Unabridged Dictionary (1913)

Calcine \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.

Calcine \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.

Source : WordNet®

calcine
     v : heat a substance so that it oxidizes or reduces