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antioxidant

[an-tee-ok-si-duh nt, an-tahy-] /ˌæn tiˈɒk sɪ dənt, ˌæn taɪ-/
noun
1.
Chemistry. any substance that inhibits oxidation, as a substance that inhibits oxidative deterioration of gasoline, rubbers, plastics, soaps, etc.
2.
Biochemistry. an enzyme or other organic substance, as vitamin E or beta carotene, that is capable of counteracting the damaging effects of oxidation in animal tissues.
adjective
3.
Chemistry. of or pertaining to an antioxidant.
Origin
1925-1930
1925-30; anti- + oxidant (oxid(ize) + -ant)
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for anti oxidant

antioxidant

/ˌæntɪˈɒksɪdənt/
noun
1.
any substance that retards deterioration by oxidation, esp of fats, oils, foods, petroleum products, or rubber
2.
(biology) a substance, such as vitamin C, vitamin E, or beta carotene, that counteracts the damaging effects of oxidation in a living organism
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
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Word Origin and History for anti oxidant

antioxidant

1920 (n.); 1932 (adj.), from anti- + oxidant.

Online Etymology Dictionary, © 2010 Douglas Harper
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anti oxidant in Science
antioxidant
  (ān'tē-ŏk'sĭ-dənt, ān'tī-)   
A chemical compound or substance that inhibits oxidation. Certain vitamins, such as vitamin E, are antioxidants and may protect body cells from damage caused by the oxidative effects of free radicals.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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