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heroin: Meaning and Definition of
her•o•in
Pronunciation: (her'ō-in), [key]
— n. Pharm.
- a white, crystalline, narcotic powder, CHNO, derived from morphine, formerly used as an analgesic and sedative: manufacture and importation of heroin are now controlled by federal law in the U.S. because of the danger of addiction. Also called
See also:
- heroin (Thesaurus)
