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narcotic
noun
- a drug, as opium or any of its derivatives (morphine, heroin, codeine, etc.), used to relieve pain and induce sleep: narcotics are often addictive and in excessive doses can cause stupor, coma, or death
- anything that has a soothing, lulling, or dulling effect
adjective
- of, like, or capable of producing narcosis
- of, by, or for narcotic addicts
See narcotic in American Heritage Dictionary 4
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