noun \ˌant-ē-ˈäk-səd-ənt, ˌan-ˌtī-\

Definition of ANTIOXIDANT

: any of various substances (as beta-carotene, vitamin C, and alpha-tocopherol) that inhibit oxidation or reactions promoted by oxygen and peroxides and that include many held to protect the living body from the deleterious effects of free radicals
antioxidant adjective

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