crack cocaine

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cocaine

 [ko-kān´]
an alkaloid obtained from the leaves of various species of Erythroxylon (coca plants) or produced synthetically; used as a topical anesthetic for surgery of mucous membranes. Abuse of cocaine by inhalation through the nose (“snorting”) is a serious health problem. Chronic users develop ulceration of the nasal mucosa that can eventually lead to perforation of the septum. Its systemic toxic effects are related to its sympathomimetic characteristics, including vasoconstriction, tachycardia, and hypertension. Cardiac dysrhythmias and high fever have caused serious consequences and even death in some cocaine users.
crack cocaine a smokable form of cocaine prepared for illicit use, characterized by rapid absorption and onset of euphoric effects.

crack co·caine

a derivative of cocaine, usually smoked, resulting in a brief, intense high. Crack is relatively inexpensive and extremely addictive. See: street drug.

crack cocaine

n.
Chemically purified, very potent cocaine in pellet form that is smoked through a glass pipe and is considered highly and rapidly addictive.
A ‘free-base’ form of cocaine, prepared by sodium bicarbonate extraction of cocaine-HCl, resulting in inexpensive yellowish crystals which, when smoked in a pipe, produce a brief, very intense ‘high’

crack co·caine

(krak kō-kān')
A derivative of cocaine, usually smoked, producing brief, intense euphoria. Crack cocaine is relatively inexpensive and extremely addictive; dependency can develop in less than 2 weeks. As with snorted or injected cocaine, it has both acute and chronic adverse effects, including heart and nasopharyngeal damage, seizures, sudden death, and psychosis.
See also: street drug

crack co·caine

(krak kō-kān')
Derivative of cocaine, usually smoked, resulting in a brief, intense high. It is relatively inexpensive and extremely addictive.
References in periodicals archive ?
I love Daddy and quit caring that he was a crackhead or hurt some bad kid.
More flamboyant turns by Getty, Deary, Lori Petty (as a spazzed crackhead) and others add welcome gallows humor without lessening pic's hard-truth air one bit.
"How long do you think Sean Hannity's show would last if four times in one sentence, he made a comment about, say, the President of the United States, and said that he looked like a skinny, ghetto crackhead? Which, by the way, you might want to say that Barack Obama does," Bozell said.
I'll get a new house, three grand and it'll mean I get away from the crackhead next door."
How appropriate, since the crackhead has made a shambles of his life through babies.
Another mutual friend, the erratic and unwashed crackhead Ryan, is a problem for everyone.
Gary Bauer, the former Republican presidential candidate, said there's a moral distinction between Limbaugh and a street-corner crackhead: Limbaugh wasn't trying to get high.
No amount of eggheads - ruminating over the rela-tions between a former crackhead, posing as a prisoner and other more regular blokes acting as prison officers - are going to convince me that this isn't Big Brother behind bars.
Told mainly through the eyes of its crackhead anti-hero, named Black, the story centers on the murder of a Latino city councilman in a condemned drug house.
Victor is hung up on Elena (the commensurately stunning Francesca Neri), a spoiled crackhead socialite whom he ravished one night in a nightclub toilet.