An enzyme that catalyzes the conversion of superoxide into hydrogen peroxide and oxygen(noun)
WordNet. Princeton University. 2010.
Use "superoxide dismutase" in a sentence
"Acai fruit, or Brazilian palm berry, not only tastes like slightly chocolaty berries and has ten to thirty times the anthocyanidin antioxidants of red wine, it also contains an unusually high content of the antioxidant catalyst SOD superoxide dismutase which makes it a true standout at quenching free radicals."