dopamine

noun
do·​pa·​mine | \ ˈdō-pə-ˌmēn How to pronounce dopamine (audio) \

Definition of dopamine

: 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

If Moe's inability to experience pleasure is driven by too little dopamine, pramipexole could help, Williams says. Emily Underwood, Science | AAAS, "Brain scans could help personalize treatment for people who are depressed or suicidal," 20 Aug. 2019 The brain send a distress signal, and the hormones adrenaline and cortisol are released, as well as norepinephrine, dopamine. The Editors, Marie Claire, "Every Question About Anxiety You've Ever Had, Answered," 8 July 2019 Into your eyeballs comes the sweet dopamine hit of fun. Adam Rogers, WIRED, "The Colorful Science of Why Fireworks Look Bad on TV," 4 July 2019 But more recently, scientists discovered that dopamine cells don’t just care about tangible rewards. Sofia Deleniv, Discover Magazine, "When Ignorance Is Bliss," 19 Mar. 2019 Alkaline conditions are usually needed to realize the polymerization of dopamine, so it cannot be applied to materials that are unstable under alkaline conditions. Jason Daley, Smithsonian, "Mussels’ Sticky Threads Could Inspire Ways to Clean Up Oil Spills, Purify Water and More," 13 July 2019 That’s the brain’s reward system, and opioids can hijack it by triggering a surge of dopamine larger than nature ever could. Lauran Neergaard, The Denver Post, "Researchers peek into opioid users’ brains as they try to quit," 9 July 2019 Carr puts their texts on-screen with the accompanying pings and whooshes of real messages, giving some sense of the dopamine hits their communiqués must have offered. Sophie Gilbert, The Atlantic, "The Cultural Fault Lines of I Love You, Now Die," 10 July 2019 Cocaine directly interferes with the brain's use of dopamine to convey messages from one neuron to another. Eric Bowman, CNN, "The five most addictive substances in the world," 23 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dopamine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of dopamine

1959, in the meaning defined above

History and Etymology for dopamine

dopa + amine

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More Definitions for dopamine

dopamine

noun
do·​pa·​mine | \ ˈdō-pə-ˌmēn How to pronounce dopamine (audio) \

Medical Definition of dopamine

: 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