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]WordNet (r) 3.0 (2006):
carbide n 1: a binary compound of carbon with a more electropositive element