antioxidant
[an-tee-ok-si-duh nt, an-tahy-]
- Chemistry. any substance that inhibits oxidation, as a substance that inhibits oxidative deterioration of gasoline, rubbers, plastics, soaps, etc.
- 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.
Show More
- Chemistry. of or relating to an antioxidant.
Show More
Origin of antioxidant
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for antioxidant
Contemporary Examples
This at-home blood test kit gives a full reading of antioxidant, fatty acid, or vitamin panels.
CBD has been shown to have significant health benefits as an antioxidant and neuroprotectant.
Ricki Lake: The ‘Weed the People’ Filmmaker on Why We Should Legalize MarijuanaRicki Lake
May 20, 2014
That creates a large oxidative stress,” he says, “so we would expect an antioxidant [like vitamin E] to be helpful.
antioxidant
- any substance that retards deterioration by oxidation, esp of fats, oils, foods, petroleum products, or rubber
- biology a substance, such as vitamin C, vitamin E, or beta carotene, that counteracts the damaging effects of oxidation in a living organism
Show More
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 antioxidant
Online Etymology Dictionary, © 2010 Douglas Harper
antioxidant
[ăn′tē-ŏk′sĭ-dənt, ăn′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.
Show More
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.