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

 

ketamine

 noun
noun
BrE BrE//ˈkiːtəmiːn//
 
; NAmE NAmE//ˈkiːtəmiːn//
 
(informal ket
BrE BrE//kiːt//
 
; NAmE NAmE//kiːt//
 
)
[uncountable] Addiction
 
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a substance that is used as an anaesthetic, and also as a drug that is taken illegally for pleasure See related entries: Addiction Word Origin 1960s: blend of ketone and amine.
See the Oxford Advanced American Dictionary entry: ketamine