Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Serotonin" Definition
noun
An organic compound, C10H12N2O, formed from tryptophan and found in animal and human tissue, especially the brain, blood serum, and gastric mucous membranes, and active as a neurotransmitter and in vasoconstriction, stimulation of the smooth muscles, and regulation of cyclic body processes.
Source: American Heritage Dictionary
A phenolic amine neurotransmitter CHNO that is a powerful vasoconstrictor and is found especially in the brain, blood serum, and gastric mucous membrane of mammals.
Source: Merriam-Webster
A compound present in blood platelets and serum, which constricts the blood vessels and acts as a neurotransmitter.
Source: Oxford Dictionary