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English definition of “narcotic”

narcotic

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