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

Some of these monoamines are neurotransmitters including serotonin, epinephrine, and dopamine. Carolyn Twersky, Seventeen, "Can You Really Have a Serial Killer Gene like Betty on "Riverdale"?," 9 May 2019 These drugs typically work by affecting the levels of brain neurotransmitters that impact mood, like dopamine and serotonin, Jamie Alan, Ph.D., an assistant professor of pharmacology and toxicology at Michigan State University, tells SELF. Korin Miller, SELF, "What to Know About Getting Pregnant If You Take Antipsychotics," 17 Jan. 2019 Compared to cotton or silk, linen has heft—a Once Milano linen quilt might be a good replacement for this year’s popular weighted blankets, which are said to help with anxiety and increase levels of serotonin. Carmen Rosy Hall, Vogue, "Why Linen Sheets Are Worth Keeping on Through Winter," 21 Dec. 2018 Being touched also triggers a rush of the neurotransmitters serotonin, a lack of which has been linked to depression, and dopamine, which regulates pleasure. Cari Romm, The Cut, "The Lasting Damage of Depriving a Child of Human Touch," 20 June 2018 The fast-acting carb in the cereal increases tryptophan levels, upping the zzz-inducing brain chemical serotonin. Denise Foley, Good Housekeeping, "How to Get to Sleep Fast: 8 Simple Ideas," 27 Dec. 2012 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 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

2 Jun 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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