anti·oxi·dantBrE/ˌæntiˈɒksɪdənt/NAmE/ˌæntiˈɑːksɪdənt/noun(biology生物) asubstancesuchasvitamin, etc., such as free radicalsCorEthatremovesdangerousmolecules, etc., suchasfree radicalsfromthebody抗氧剂(如维生素 C 或 E,可消除体内的有害分子等,如消除自由基)(chemistry化学) asubstancethathelpspreventoxidation, especiallyoneusedtohelppreventstoredfoodproductsfromgoingbad(尤用于食物保鲜的)抗氧化剂