The Collaborative International Dictionary of English v.0.48:

Carbide \Car"bide\, n. [Carbon + -ide.] (Chem.)
   A binary compound of carbon with some other element or
   radical, in which the carbon plays the part of a negative; --
   formerly termed carburet.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Carburet \Car"bu*ret\, n. [From Carbon.] (Chem.)
   A carbide. See Carbide [Archaic]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Carburet \Car"bu*ret\, v. t. [imp. & p. p. Carbureted or
   Carburetted (?); p. pr. & vb. n. Carbureting or
   Carburetting.]
   To combine or to impregnate with carbon, as by passing
   through or over a liquid hydrocarbon; to carbonize or
   carburize.
   [1913 Webster]

         By carbureting the gas you may use poorer coal.
                                                  --Knight.
   [1913 Webster]

WordNet (r) 3.0 (2006):

carburet
    v 1: combine with carbon