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
-
Trending Now:
More Trending:
- dotage, dotard otherwise federalism bodega carceral
- ALL
What's Trending Now
More Trending Words
From the M-W Editors
Recent Examples of serotonin from the Web
-
Because zebrafish and humans share the same opioid receptor in their brains, as well as neurotransmitters such as dopamine and serotonin that signal pleasure and reward, the team hopes to use them to screen for new treatments for opioid addiction.
-
Depression previously has been linked to imbalances of the neurotransmitters serotonin, norepinephrine and dopamine.
-
The researchers found that the newborn monkeys of obese mothers had defects in their brain, with abnormalities in the central serotonin system.
-
Hales has a tattoo of a serotonin molecule on her left rib and one day, a protester asked what molecule was on her tattoo.
-
Hales has a tattoo of a serotonin molecule on her left rib and one day, a protester asked what molecule her tattoo was of.
-
Research on humans suggests that, during early brain development, those who will go on to develop autism have unusually low levels of serotonin in critical areas of the brain.
-
For non-ursines, disruption of biological clocks after time changes muddle internal melatonin production, which regulates sleep, and serotonin levels drop with reduced exposure to sunshine.
-
Traditional selective serotonin reuptake inhibitors like Prozac can do the same thing, but that process could take months.
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.
Origin and Etymology of serotonin
Medical Dictionary
serotonin
play
noun
se·ro·to·nin
\
ˌsir-ə-ˈtō-nən
,
ˌser-
\
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
Learn More about serotonin
-
Nglish: Translation of serotonin for Spanish speakers Britannica English: Translation of serotonin for Arabic speakers Britannica.com: Encyclopedia article about serotonin
Seen and Heard
What made you want to look up serotonin? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!