Antioxidant Definition

ăntē-ŏksĭ-dənt, ăntī-
antioxidants
noun
A chemical compound or substance that inhibits oxidation.
American Heritage
A substance that slows down the oxidation of hydrocarbons, oils, fats, etc. and thus helps to check deterioration: antioxidants are added to many products, esp. foods and soaps.
Webster's New World
A substance, such as vitamin E, vitamin C, or beta carotene, thought to protect body cells from the damaging effects of oxidation.
American Heritage
A substance that inhibits oxidation, especially one, such as vitamin E, vitamin C, or beta carotene, that protects cells from the sometimes damaging effects of oxidation.
American Heritage Medicine
An antioxidant keeps a substance from degrading or decaying by inhibiting the chemical reaction called oxidation, the reaction of substances to exposure to oxygen molecules.
An example of an antioxidant is wax used on a car to prevent rust.
YourDictionary
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adjective
Serving to check oxidation.
Webster's New World
Antioxidant is defined as any substance that prevents or repairs the process of oxidation.
An example of something that is described as antioxidant are pomegranates.
YourDictionary
Acting or having agents that act against oxidation.
Wiktionary
other
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.
American Heritage Science

Other Word Forms of Antioxidant

Noun

Singular:
antioxidant
Plural:
antioxidants
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antioxidant