monoamine oxidase

noun Biochemistry.

1. a copper-containing enzyme that catalyzes the breakdown of monoamines. Abbreviation: MAO

noun

1. biochem an enzyme present in nerve tissue that is responsible for the inactivation of neurotransmittersAbbreviation: MAO

n.

1. An enzyme in the cells of most tissues that catalyzes the oxidative deamination of monoamines such as serotonin.