: 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

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The slower pace allows friends to socialize on the way, and the exercise releases doses of endorphins, dopamine and serotonin to improve student’s moods and brain health for a better day. Letters To The Editor, The Orlando Sentinel, 1 Aug. 2026 Chronic stress blunts people’s dopamine response, so nothing feels quite as rewarding, which can look like depression. Erin Clabough, The Conversation, 31 July 2026 The trend is also of shot dopamine to the closet for some consumers. Angela Velasquez, Footwear News, 29 July 2026 The exact cause isn’t known, but Parkinson’s develops when cells that produce one of the brain’s chemical messengers — dopamine — begin to deteriorate and die. CNN Money, 28 July 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 5 Aug. 2026.

Medical Definition

: 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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