serotonin
noun
se·ro·to·nin
ˌsir-ə-ˈtō-nən 
ˌser-
: 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
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Tryptophan is an amino acid needed to make melatonin and serotonin, which control sleep.
—
Johna Burdeos, Health, 8 Apr. 2025
Similarly, cortisol and serotonin levels are lowered — which can respectively result in lower stress and greater levels of obsession.
—Mark Travers, Forbes.com, 7 Apr. 2025
Little Kitty, Big City Any subscription service needs to feature a few jolts of serotonin that are quick to download and easy to please, and right now, the reigning champion in the field is undoubtedly Little Kitty, Big City.
—Luke Winkie, Vulture, 1 Apr. 2025
People who regularly ate citrus were shown to have beneficial gut bacteria that may boost the production of serotonin and dopamine.
—Emily Kay Votruba, EverydayHealth.com, 28 Feb. 2025
See All Example Sentences for serotonin
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Johna Burdeos, Health, 8 Apr. 2025
Similarly, cortisol and serotonin levels are lowered — which can respectively result in lower stress and greater levels of obsession.
—Mark Travers, Forbes.com, 7 Apr. 2025
Little Kitty, Big City Any subscription service needs to feature a few jolts of serotonin that are quick to download and easy to please, and right now, the reigning champion in the field is undoubtedly Little Kitty, Big City.
—Luke Winkie, Vulture, 1 Apr. 2025
People who regularly ate citrus were shown to have beneficial gut bacteria that may boost the production of serotonin and dopamine.
—Emily Kay Votruba, EverydayHealth.com, 28 Feb. 2025
See All Example Sentences for serotonin
Cite this Entry
“Serotonin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/serotonin. Accessed 21 Apr. 2025.
Copy CitationMedical Definition
serotonin
noun
se·ro·to·nin
ˌsir-ə-ˈtō-nən
ˌser-
ˌser-
: 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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