oxidant oxidable • oxidase · · · Info · Definitions · Synonyms · Characters · · oxidant · · Text Latin · · Script 7 · · Length Definitions · · · (noun) a substance that oxidizes another substance. Synonyms: oxidizer, oxidiser, oxidizing agent. · · Noun Definition 1 Synonyms · · · oxidizer · · Synonym 1 oxidiser · · Synonym 2 oxidizing agent · · Synonym 3 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 x latin small letter x U+0078