Definition of dopamine noun from the Oxford Advanced Learner's Dictionary

 

dopamine

 noun
noun
BrE BrE//ˈdəʊpəmiːn//
 
; NAmE NAmE//ˈdoʊpəmiːn//
 
[uncountable]
 
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a chemical produced by nerve cells which has an effect on other cells Word Origin 1950s: blend of dopa and amine.
See the Oxford Advanced American Dictionary entry: dopamine