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
Recent Examples of serotonin from the Web
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.
The legume is loaded with vitamin B6, a water-soluble vitamin that can raise serotonin levels which helps induce sleep.
Studies have shown that stimulation of these acupoints result in the release of endorphins, serotonin and other neurotransmitters that help heal and influence the body in different ways, the St. Tammany Humane Society press release said.
Foods rich in carbohydrates, lean in protein and low in fat also may boost the production of serotonin and melatonin, such as granola, unsweetened cereals or whole-grain crackers with milk, according to the University of Maryland Medical Center.
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
sero- + tonic + 1-in
First Known Use: 1948See Words from the same year
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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