noun. A chemical compound or substance that inhibits oxidation.

noun. A substance, such as vitamin E, vitamin C, or beta carotene, thought to protect body cells from the damaging effects of oxidation.

noun. Any substance that acts to slow or prevent the oxidation of another chemical.

noun. In nutrition, one of a group of vitamins that act against the effects of free radicals.

adjective. Acting or having agents that act against oxidation.

noun. substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides

"Today the term antioxidant usually encompasses vitamin C, vitamin E, beta-carotene and other related carotenoids, as well as the minerals selenium and manganese, which are needed by several free-radical-destroying enzymes in order to work properly."

oxidant  

inhibitor  

Se  ascorbic acid  atomic number 34  beta-naphthol  c  

oxidant  

amino  anti-inflammatory  antidepressant  antitumor  antiviral