A peroxidase occurring in phagocytic cells that can oxidize halogen ions ( e.g., I−) to the free halogen; an autosomal recessive deficiency of m. leads to impaired bacterial killing.
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my·e·lo·per·ox·i·dase .mī-ə-lō-pə-'räk-sə-.dās, -.dāz n a green peroxidase of phagocytic cells (as neutrophils and monocytes) that is held to assist in bactericidal activity by catalyzing the oxidation of ionic halogen to free halogen
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my·elo·per·ox·i·dase (MPO) (mi″ə-lo-pər-okґsĭ-dās) peroxidase (def. 2).Medical dictionary. 2011.