monoamine oxidase
noun
: an enzyme that deaminates monoamines oxidatively and that functions in the nervous system by breaking down monoamine neurotransmitters
Examples of monoamine oxidase in a Sentence
Recent Examples on the Web
To prepare ayahuasca, a plant containing DMT is boiled with another plant that contains a monoamine oxidase inhibitor (MAOI), such as harmaline, and the resulting brew is then consumed.
—
Khloe Quill,
FOXNews.com,
19 Feb. 2026
Tyramine can suddenly raise blood pressure when combined with monoamine oxidase inhibitors (MAOIs), a type of antidepressant.
—
Merve Ceylan,
Health,
20 Oct. 2025
Dopamine, which is essential for the brain’s ability to control movement, is also broken down by monoamine oxidase.
—
Literary Hub,
16 July 2025
Methylene blue inhibits a molecule called monoamine oxidase, whose job is to break down an important brain chemical, serotonin.
—
Lorne J. Hofseth,
The Conversation,
3 June 2025
Products with pseudoephedrine should not be used while taking, or within two weeks of stopping, a prescription monoamine oxidase inhibitor, which is most commonly used to treat for depression or Parkinson’s disease.
—
Lucas Berenbrok,
Fortune Well,
26 Oct. 2023
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Khloe Quill,
FOXNews.com,
19 Feb. 2026
Tyramine can suddenly raise blood pressure when combined with monoamine oxidase inhibitors (MAOIs), a type of antidepressant.
—
Merve Ceylan,
Health,
20 Oct. 2025
Dopamine, which is essential for the brain’s ability to control movement, is also broken down by monoamine oxidase.
—
Literary Hub,
16 July 2025
Methylene blue inhibits a molecule called monoamine oxidase, whose job is to break down an important brain chemical, serotonin.
—
Lorne J. Hofseth,
The Conversation,
3 June 2025
Products with pseudoephedrine should not be used while taking, or within two weeks of stopping, a prescription monoamine oxidase inhibitor, which is most commonly used to treat for depression or Parkinson’s disease.
—
Lucas Berenbrok,
Fortune Well,
26 Oct. 2023
Cite this Entry
“Monoamine oxidase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monoamine%20oxidase. Accessed 3 Jul. 2026.
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