[ ok-sahyd, -sid ]
/ ˈɒk saɪd, -sɪd /
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noun Chemistry.

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
ox·id·ic [ok-sid-ik], /ɒkˈsɪd ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for oxide

/ (ˈɒksaɪd) /


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

Medical definitions for oxide

[ ŏksīd′ ]


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

Scientific definitions for oxide

[ ŏksīd′ ]

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