Monoamine oxidase is a crucial enzyme that plays a significant role in various physiological functions. There are several synonyms for the word monoamine oxidase, which includes MAO, amine oxidase, and also diamine oxidase. These enzymes catalyze the oxidation of monoamines, which are very important neurotransmitters, including serotonin, norepinephrine, and dopamine. Scientists have developed several specific drugs targeting the MAO system, targeting the activity of monoamine oxidase in different ways. Monoamine oxidase is also known as a possible target for drug development and has been linked to the pathogenesis of several significant psychiatric disorders. Thus, understanding synonyms of the word monoamine oxidase is crucial in the pharmacological field and scientific research.