ox·ide

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


Origin:
1780–90; < French (now oxyde), blend of oxygène and acide. See oxygen, acid

ox·id·ic [ok-sid-ik] , adjective
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Collins
World English Dictionary
oxide (ˈɒksaɪd) [Click for IPA pronunciation guide]
 
n
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
 
[C18: from French, from ox(ygène) + (ac)ide; see oxygen, acid]

Collins English Dictionary - Complete & Unabridged 10th Edition
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00:10
Oxide is always a great word to know.
So is ort. Does it mean:
a fool or simpleton; ninny.
a scrap or morsel of food left at a meal.
Etymonline
Word Origin & History

oxide
"compound of oxygen with another element," 1790, from Fr. oxide (1787), coined by G. de Morveau and A. Lavoisier from ox(ygène) + (ac)ide. See oxygen.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

oxide ox·ide (ŏk'sīd')
n.
A binary compound of an element or a radical with oxygen.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
oxide   (ŏk'sīd')  Pronunciation Key 
A compound of oxygen and another element or radical. Water (H2O) is an oxide.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The red color comes from iron oxide that has been exposed to the elements.
Metal oxide transistor arrays are less expensive to make and provide the
  necessary performance.
To prevent the animals from controlling their own gaze, the researchers began
  by sedating them with nitrous oxide.
Packed inside the zirconium cladding are pellets of uranium oxide or other
  fissionable materials.
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