monoamine oxidase inhibitor
- noun any of various drugs that inhibit monoamine oxidase and are used for treating depression, e.g. phenelzine.
- abbreviationMAO inhibitor
- noun a drug which inhibits monoamine oxidase and is used to treat depression, e.g. phenelzine. Its use is limited, because of the potential for drug and dietary interactions and the necessity for slow withdrawal. It can also cause high blood pressure.