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serotonin
[ ser-uh-toh-nin, seer- ]
/ ˌsɛr əˈtoʊ nɪn, ˌsɪər- /
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noun Biochemistry.
a neurotransmitter, derived from tryptophan, that is involved in sleep, depression, memory, and other neurological processes.
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Words nearby serotonin
serotherapy, serotinal, serotine, serotinous, serotonergic, serotonin, serotype, serous, serous cell, serous cyst, serous fluid
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use serotonin in a sentence
British Dictionary definitions for serotonin
serotonin
/ (ˌsɛrəˈtəʊnɪn) /
noun
a compound that occurs in the brain, intestines, and blood platelets and acts as a neurotransmitter, as well as inducing vasoconstriction and contraction of smooth muscle; 5-hydroxytryptamine (5HT)
Word Origin for serotonin
from sero- + ton (ic) + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for serotonin
serotonin
[ sĕr′ə-tō′nĭn, sîr′- ]
n.
An organic compound formed from tryptophan and found in animal and human tissue, especially the brain, blood serum, and gastric mucous membranes, and active in vasoconstriction, stimulation of the smooth muscles, transmission of impulses between nerve cells, and regulation of cyclic body processes.5-hydroxytryptamine
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for serotonin
serotonin
[ sĕr′ə-tō′nĭn, sîr′- ]
A monoamine substance that is formed from tryptophan and found in many animal tissues, including the intestine and central nervous system. In the brain, serotonin acts as a neurotransmitter that is involved in the control of pain perception, the sleep-wake cycle, and mood. Serotonin is also produced in some bacteria and plants.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.