noun
(chemistry) Any binary compound of carbon and a more electropositive element
(chemistry) The polyatomic ion C2−2, or any of its salts.
(chemistry) The monatomic ion C⁴⁻, or any of its salts.
(chemistry) A carbon-containing alloy or doping of a metal or semiconductor, such as steel.
(chemistry) Tungsten carbide.
(cycling) trivial name for calcium carbide (CaC₂), used to produce acetylene in bicycle lamps in the early 1900s.