|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|
|antioxidant (ān'tē-ŏk'sĭ-dənt, ān'tī-) Pronunciation Key
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.