Definition of "carbide"

(chemistry) Any binary compound of carbon and a more electropositive element  examples

(chemistry) The polyatomic ion C22−, or any of its salts.  examples

(chemistry) The monatomic ion C4−, or any of its salts.  examples

(chemistry) A carbon-containing alloy or doping of a metal or semiconductor, such as steel.  examples

(chemistry) Tungsten carbide.  examples

(cycling) trivial name for calcium carbide (CaC2), used to produce acetylene in bicycle lamps in the early 1900s.  examples