antioxidant
Americannoun
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Chemistry. any substance that inhibits oxidation, as a substance that inhibits oxidative deterioration of gasoline, rubbers, plastics, soaps, etc.
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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
noun
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any substance that retards deterioration by oxidation, esp of fats, oils, foods, petroleum products, or rubber
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biology a substance, such as vitamin C, vitamin E, or beta carotene, that counteracts the damaging effects of oxidation in a living organism
Etymology
Origin of antioxidant
First recorded in 1925–30; anti- + oxidant ( oxid(ize) + -ant )
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The ultrasound-assisted process also boosted the honey's levels of phenolic compounds, known for their antioxidant and anti-inflammatory effects.
From Science Daily
These components may help enhance antioxidant activity in the body and reduce lipid oxidation, a process associated with oxidative stress.
From Science Daily
This underused by-product has shown strong potential for enriching bread with protein, fiber, and antioxidant compounds.
From Science Daily
According to the researchers, people with asthma may have lower levels of enzymes and antioxidant molecules that normally neutralize free radicals before they cause harm.
From Science Daily
When the researchers treated stressed skin cells with catalase, a naturally occurring antioxidant enzyme that breaks down hydrogen peroxide, cellular stress levels dropped.
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
