Source : Webster's Revised Unabridged Dictionary (1913)

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}.

Source : WordNet®

carbide
     n : a binary compound of carbon with a more electropositive
         element