Definitions for oxidaseˈɒk sɪˌdeɪs, -ˌdeɪz
Random House Webster's College Dictionary
ox•i•daseˈɒk sɪˌdeɪs, -ˌdeɪz(n.)
any of a class of enzymes that catalyze oxidation by molecular oxygen and, in most cases, form hydrogen peroxide.
Origin of oxidase:
any of the enzymes that catalyze biological oxidation
Any of many enzymes which catalyze oxidation reactions, especially ones using molecular oxygen.