Definition of neurotransmitter noun from the Oxford Advanced American Dictionary

 

neurotransmitter

 noun
noun
NAmE//ˌnʊroʊˈtrænsmɪt̮ər//
 
, NAmE//ˌnʊroʊˈtrænzmɪt̮ər//
 
(biology)
 
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a chemical that carries messages from nerve cells to other nerve cells or muscles
See the Oxford Advanced Learner's Dictionary entry: neurotransmitter