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English definition of “neurotransmitter”

neurotransmitter

noun [C]     /ˌnjʊə.rəʊ.trænzˈmɪt.ər/ US  /ˌnʊr.oʊ.trænsˈmɪt̬.ɚ/
a chemical that carries messages between neurons or between neurons and muscles
(Definition of neurotransmitter noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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