from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A white, odorless, bitter crystalline compound, C17H17NO(C2H3O2)2, that is derived from morphine and is a highly addictive narcotic. Also called diacetylmorphine.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A powerful and addictive drug derived from opium producing intense euphoria classed as an illegal narcotic in most of the world.
from the GNU version of the Collaborative International Dictionary of English
- n. a morphine derivative, diacetyl morphine, used to relieve severe pain and as a sedative. It is highly addictive, and its use is strictly controlled in the U.S. by federal law. It is a popular strong narcotic drug of abuse, in part because it is more soluble than morphine. It is sometimes included as one of the components of Brompton's mixture, used to control pain in terminallly ill patients.
from The Century Dictionary and Cyclopedia
- n. A simplified spelling of heroine.
- n. Diacetyl-morphia: a remedy valuable in the treatment of various forms of respiratory disease. It allays cough and acts as a hypnotic.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a narcotic that is considered a hard drug; a highly addictive morphine derivative; intravenous injection provides the fastest and most intense rush
German, originally a trademark.(American Heritage® Dictionary of the English Language, Fourth Edition)
Since the 1890s from a German trademark, from Ancient Greek ἥρως (hērōs, "hero") (due to the feelings of power and exaltation while under the influence of the drug). (Wiktionary)