Serotonin
4 definitions

Serotonin
A biochemical messenger and regulator, synthesized from the essential amino acid, l-tryptophan. In humans it is found primarily in the central nervous system, gastrointestinal tract, and blood platelets. Serotonin mediates several important physiological functions including neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity.
Serotonin

A hormone found in the brain, platelets, digestive tract and pineal gland. It acts both as a neurotransmitter (a substance that nerves use to send messages to one another) and a vasoconstrictor (a substance that causes blood vessels to narrow). A lack of serotonin in the brain is thought to be a cause of depression. Also called 5-hydroxytryptamine.

Serotonin
"serotonin": A biochemical messenger and regulator, synthesized from the essential amino acid, l-tryptophan. In humans it is found primarily in the central nervous system, gastrointestinal tract, and blood platelets. Serotonin mediates several important physiological functions including neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity.
Serotonin

A hormone found in the brain, platelets, digestive tract, and pineal gland. It acts both as a neurotransmitter (a substance that nerves use to send messages to one another) and a vasoconstrictor (a substance that causes blood vessels to narrow). A lack of serotonin in the brain is thought to be a cause of depression.

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About this term

Serotonin has been defined 4 different ways in documents like 2014 NAL Thesaurus, Glossary of Cancer Terms, 2015 NAL Glossary, and 1 more.

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