noun Chemistry.

  1. a compound in which oxygen is bonded to one or more electropositive atoms.


  1. any compound of oxygen with another element
  2. any organic compound in which an oxygen atom is bound to two alkyl or aryl groups; an ether or epoxide

n.“compound of oxygen with another element,” 1790, from French oxide (1787), coined by G. de Morveau and A. Lavoisier from ox(ygène) (see oxygen) + (ac)ide “acid” (see acid). n.

  1. A binary compound of an element or radical with oxygen.

  1. A compound of oxygen and another element or radical. Water (H2O) is an oxide.
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