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

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Harris says that menopausal and perimenopausal women also run a greater risk of developing more serious conditions like sleep apnea and restless legs syndrome (RLS), due in part to the way changes in estrogen and progesterone can weaken throat muscles and reduce dopamine, a key movement regulator. Emma Loewe, Outside, 1 Jan. 2026 By seemingly changing dopamine signals in the brain, these drugs could reduce cravings and allow the individual to be more rational when faced with tempting options. Elsa Ohlen, CNBC, 30 Dec. 2025 Cue the dopamine receptors; these films are designed to light up the joyful parts of your brain. Andrew Walsh, Entertainment Weekly, 29 Dec. 2025 And a boost in dopamine levels may help children with ADHD feel more positive about mundane tasks like homework. Jon Hamilton, NPR, 27 Dec. 2025 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 6 Jan. 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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