SOD en · NOUN Meanings (abbreviation, alt-of) Abbreviation of superoxide dismutase, any of a class of enzymes that catalyze the handling of free radicals in cellular metabolism. alt of any of a class of enzymes that catalyze the handling of free radicals in cellular metabolismalt of superoxide dismutase (abbreviation, alt-of) Abbreviation of start of day. alt of start of day (abbreviation, alt-of, initialism) Initialism of sunflower oleodistillate or initialism of sunflower oil distillate (synonymous). alt of sunflower oleodistillate or initialism of sunflower oil distillate Antonyms EOB · EOW · EOD · COB Synonyms BOD wikidata: Q410776