monoamine oxidase

American  

noun

Biochemistry.

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

---

monoamine oxidase British  

noun

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

---

Etymology

Origin of monoamine oxidase

First recorded in 1950–55

Example Sentences

Dr. Friedman added that an older type of antidepressants known as monoamine oxidase inhibitors, or MAOIs, could be particularly dangerous when combined with alcohol.

From New York Times

Ingested on its own, it has no effect on humans, because it is rapidly degraded by an enzyme in the gut, monoamine oxidase.

From The New Yorker

Combined, they contain D.M.T. and monoamine oxidase inhibitors, which promote psychedelic visions and euphoria.

From New York Times

In 1993, in a paper published in the journal Science, researchers reported that a mutation leading to a lack of the enzyme monoamine oxidase caused violence in a Dutch family.

From New York Times

The drugs tested in those studies included Prozac, as well as older and now less-popular medications known as monoamine oxidase inhibitors and tricyclic and tetracyclic antidepressants.

From Reuters