define antioxidants
Noun[edit] antioxidant â(plural antioxidants) 1  Any substance that acts to slow or prevent the oxidation of another chemical. 2  In nutrition, one of a group of vitamins that act against the effects of free radicals.  Bulgarian: Ð°Ð½ÑÐ¸Ð¾ÐºÐ¸ÑÐ»Ð¸ÑÐµÐ» m â(Ã¡ntiokislÃ­tel)