serotonin

noun
se·​ro·​to·​nin | \ ˌsir-ə-ˈtō-nən How to pronounce serotonin (audio) , ˌser-\

Definition of serotonin

: a phenolic amine neurotransmitter C10H12N2O that is a powerful vasoconstrictor and is found especially in the brain, blood serum, and gastric mucous membrane of mammals

Examples of serotonin in a Sentence

Recent Examples on the Web

Specifically, bright light exposure early in the day stimulates serotonin production, improving your mood and happiness, and regulates melatonin in the evening, improving your sleep. Lynn Kim, House Beautiful, "This Little Light Could Make You Feel Happier," 26 Mar. 2019 Tricyclic antidepressants, which hinder reabsorption of the neurotransmitters serotonin and norepinephrine (this is implicated in your fight-or-flight response, are another common option for both panic attacks and anxiety, according to the DSM-5. Cassie Shortsleeve, SELF, "Is There a Difference Between an Anxiety Attack and a Panic Attack?," 12 Sep. 2018 Having carbs like white rice, pasta or white potatoes at dinner as a side is another way to increase levels of tryptophan, and thus serotonin and melatonin. Denise Foley, Good Housekeeping, "How to Get to Sleep Fast: 8 Simple Ideas," 27 Dec. 2012 These work by obstructing how easily your brain reabsorbs serotonin, a neurotransmitter that can affect your mood, the Mayo Clinic explains. Cassie Shortsleeve, SELF, "Is There a Difference Between an Anxiety Attack and a Panic Attack?," 12 Sep. 2018 In addition to dopamine, atypical antipsychotics can also affect levels of mood-affecting neurotransmitters like serotonin, norepinephrine, and others, Dr. Li explains. Carolyn L. Todd, SELF, "9 Things You Should Know About Taking Antipsychotic Drugs," 7 Dec. 2018 This amino acid triggers the release of serotonin, which is a feel-good brain chemical. Marie Claire, "9 Foods That Reduce Stress Levels," 21 Mar. 2010 Antipsychotics generally work by affecting the levels of brain neurotransmitters that impact mood, like serotonin and dopamine, Dr. Alan explains. Korin Miller, SELF, "5 Bipolar Disorder Treatments You Should Know About," 30 Nov. 2018 One species has been found to enhance serotonin production, which can lead to greater happiness and lower stress. Lisa Margonelli, WSJ, "‘Never Home Alone’ Review: The Critters Chez Nous," 28 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'serotonin.' 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 serotonin

1948, in the meaning defined above

History and Etymology for serotonin

sero- + tonic + -in entry 1

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Statistics for serotonin

Last Updated

21 Apr 2019

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Time Traveler for serotonin

The first known use of serotonin was in 1948

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More Definitions for serotonin

serotonin

noun
se·​ro·​to·​nin | \ ˌsir-ə-ˈtō-nən How to pronounce serotonin (audio) , ˌser- How to pronounce serotonin (audio) \

Medical Definition of serotonin

: a phenolic amine neurotransmitter C10H12N2O that is a powerful vasoconstrictor and is found especially in the brain, blood serum, and gastric mucous membrane of mammals

called also 5-HT, 5-hydroxytryptamine

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More from Merriam-Webster on serotonin

Nglish: Translation of serotonin for Spanish Speakers

Britannica English: Translation of serotonin for Arabic Speakers

Britannica.com: Encyclopedia article about serotonin

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