\Car"bon*ize\, v. t. [imp. & p. p. {Carbonized}; p.
pr. & vb. n. {Carbonizing}.] [Cf. F. carboniser.]
1. To convert (an animal or vegetable substance) into a
   residue of carbon by the action of fire or some corrosive
   agent; to char.
2. To impregnate or combine with carbon, as in making steel
   by cementation.