calcine \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
see also:
calciden calcining calx