serotonin
(ser-o-to-nin)
4 syllables
Definition
noun. a chemical in the brain that affects mood.
Example Sentence
Serotonin acts as a neurotransmitter that is involved in the control of pain perception.
More Example Sentences
Low levels of serotonin can cause sadness.
Synonyms
happy chemical; mood booster; neurotransmitter
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serotonin
