[ an-tee-ok-si-duh nt, an-tahy- ]
/ ˌæn tiˈɒk sɪ dənt, ˌæn taɪ- /
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.
Chemistry. of or relating to an antioxidant.
Nutritional vs. HealthyYou’ll often see these two words in the same paragraph or even the same sentence, and at first glance, it seems natural that healthy and nutritional would go hand-in-hand. But, a closer examination reveals the true scope of each word, and a better understanding may help you make better food choices. (No judgment. Some of us are still holding on to our love of a certain breakfast cereal …
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for antioxidant
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 Marijuana|Ricki Lake|May 20, 2014|DAILY BEAST
That creates a large oxidative stress,” he says, “so we would expect an antioxidant [like vitamin E] to be helpful.
British Dictionary definitions for antioxidant
/ (ˌæntɪˈɒksɪdənt) /
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
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
Science definitions for 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.