• synonyms


[ok-sahyd, -sid]
noun Chemistry.
  1. a compound in which oxygen is bonded to one or more electropositive atoms.
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Also ox·id [ok-sid] /ˈɒk sɪd/.

Origin of oxide

1780–90; < French (now oxyde), blend of oxygène and acide. See oxygen, acid
Related formsox·id·ic [ok-sid-ik] /ɒkˈsɪd ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for oxid

Historical Examples of oxid

  • An oxid is a combination of oxygen with a metal or base destitute of an acid.

    Tin Foil and Its Combinations for Filling Teeth

    Henry L. Ambler

British Dictionary definitions for oxid


  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
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Word Origin for oxide

C18: from French, from ox (ygène) + (ac) ide; see oxygen, acid
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for oxid



"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).

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Online Etymology Dictionary, © 2010 Douglas Harper

oxid in Medicine


  1. A binary compound of an element or radical with oxygen.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

oxid in Science


  1. A compound of oxygen and another element or radical. Water (H2O) is an oxide.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.