American English

Definition of methamphetamine noun from the Oxford Advanced American Dictionary

 

methamphetamine

 noun
noun
NAmE//ˌmɛθæmˈfɛt̮əˌmin//
 
, NAmE//ˌmɛθæmˈfɛt̮əmən//
 
(informal meth, crystal meth
 
)
[uncountable]
 
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a powerful illegal drug
See the Oxford Advanced Learner's Dictionary entry: methamphetamine