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serotonin
noun
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How to pronounce serotonin:

Definition of serotonin:

serotonin (noun):
a neurotransmitter involved in e.g. sleep and depression and memory.
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

Synonyms for serotonin:

5-hydroxytryptamine
monoamine neurotransmitter
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