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Definition of Heroin
1. Noun. A narcotic that is considered a hard drug; a highly addictive morphine derivative; intravenous injection provides the fastest and most intense rush.
Exact synonyms: Diacetylmorphine
Specialized synonyms: Big H, Hell Dust, Nose Drops, Scag, Skag, Smack, Thunder
Generic synonyms: Hard Drug, Opiate
Specialized synonyms: Big H, Hell Dust, Nose Drops, Scag, Skag, Smack, Thunder
Generic synonyms: Hard Drug, Opiate
Definition of Heroin
1. Noun. A powerful and addictive drug derived from opium producing intense euphoria classed as an illegal narcotic in most of the world. ¹
¹ Source: wiktionary.com
Definition of Heroin
1. an addictive narcotic [n -S]
Medical Definition of Heroin
1. Semisynthetic drug derived from morphine. Discovered in 1874, it was introduced commercially in 1898 by the bayer company in germany. The name heroin was coined from the german heroisch meaning heroic, strong. Heroin is stronger (more potent) than morphine. (12 Dec 1998)