SEROTONIN


Meaning of SEROTONIN in English

/ ˌserəˈtəʊnɪn; NAmE -ˈtoʊn-/ noun

[ U ] a chemical in the brain that affects how messages are sent from the brain to the body, and also affects how a person feels

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WORD ORIGIN

1940s: from serum + tonic + -in .

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.