carbide

/K AA1 R B AY0 D/
noun
  1. 1

    Any binary compound of carbon and a more electropositive element

  2. 2

    The polyatomic ion C22โˆ’, or any of its salts.

  3. 3

    The monatomic ion C4โˆ’, or any of its salts.

  4. 4

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

  5. 5

    Tungsten carbide.

  6. 6

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

Source: https://en.wiktionary.org/wiki/carbide