English

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

 

methadone

 noun
noun
BrE BrE//ˈmeθədəʊn//
 
; NAmE NAmE//ˈmeθədoʊn//
 
[uncountable] Addiction
 
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a drug that is used to treat people who are trying to stop taking the illegal drug heroin See related entries: Addiction Word Origin 1940s: from its chemical name, (6-di)meth(yl)a(mino-4,4-)d(iphenyl-3-heptan)one.
See the Oxford Advanced American Dictionary entry: methadone