Source : Webster's Revised Unabridged Dictionary (1913)

Volcanize \Vol"can*ize\, v. t. [imp. & p. p. {Volcanized}; p.
   pr. & vb. n. {Volcanizing}.] [Cf. {Vulcanize}.]
   To subject to, or cause to undergo, volcanic heat, and to be
   affected by its action.