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- Dictionaryheroin/ˈhɛrəʊɪn/
noun
- 1. a highly addictive analgesic drug derived from morphine, often used illicitly as a narcotic producing euphoria.
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noun
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Heroin, also known as diacetylmorphine and diamorphine among other names, is a morphinan opioid substance synthesized from the dried latex of the Papaver somniferum plant; it is mainly used as a recreational drug for its euphoric effects. Medical-grade diamorphine is used as a pure hydrochloride salt. Various white and brown powders sold illegally around the world as heroin are routinely diluted w... Wikipedia