dopamine

noun

do·​pa·​mine ˈdō-pə-ˌmēn How to pronounce dopamine (audio)
: a monoamine C8H11NO2 that is a decarboxylated form of dopa and that occurs especially as a neurotransmitter in the brain

Examples of dopamine in a Sentence

Recent Examples on the Web
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How Nicotine Affects the Body Nicotine is a highly addictive stimulant that prompts the brain’s reward center to release the neurotransmitter dopamine, triggering feelings of pleasure and improving mood. Erica Sweeney, EverydayHealth.com, 11 Mar. 2026 How does tech hijack the brain's dopamine system? Alicia Garceau, NPR, 6 Mar. 2026 At therapeutic doses, GLP-1 drugs cross the blood-brain barrier and dampen dopamine signaling in the brain’s core reward center, making addictive substances less rewarding. Ziyad Al-Aly, Fortune, 5 Mar. 2026 Free-wheeling and overflowing with dopamine, the songs on Nondi… feel like electronic renderings of the vacuous promise of connection in digital society. Kiana Mickles, Pitchfork, 5 Mar. 2026 See All Example Sentences for dopamine

Word History

Etymology

dopa + amine

First Known Use

1959, in the meaning defined above

Time Traveler
The first known use of dopamine was in 1959

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Cite this Entry

“Dopamine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dopamine. Accessed 15 Mar. 2026.

Medical Definition

dopamine

noun
do·​pa·​mine ˈdō-pə-ˌmēn How to pronounce dopamine (audio)
: a monoamine C8H11NO2 that is a decarboxylated form of dopa and occurs especially as a neurotransmitter in the brain and as an intermediate in the biosynthesis of epinephrine see intropin

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