antioxidant

American  

[an-tee-ok-si-duhnt, 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.

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adjective

1. Chemistry. of or relating to an antioxidant.

antioxidant British  

/ 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

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antioxidant Scientific  

/ ăn′tē-ŏk′sĭ-dənt,ăn′tī- /

1. 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.

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Etymology

Origin of antioxidant

First recorded in 1925–30; anti- + oxidant ( oxid(ize) + -ant )

Example Sentences

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