- monoamine oxidase inhibitor, MAOI - any of a group of antidepressant drugs that inhibit the action of monoamine oxidase in the brain and so allow monoamines to accumulate
--1 is a kind of antidepressant, antidepressant drug
--1 has particulars:iproclozid; isocarboxazid, Marplan; phenelzine, Nardil; tranylcypromine