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narcotic

noun [C]
 
 
/nɑːˈkɒt.ɪk/ US  /nɑːrˈkɑːt̬-/

Definition

mainly US an illegal drug such as heroin or cocaine: He faces three years in jail for selling narcotics.Drugs - general wordsSpecific types of drug specialized a drug that makes you want to sleep and prevents you feeling pain: Morphine is a narcotic.Specific medicines and drugsSpecific types of drug
(Definition of narcotic noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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