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.

crack cocaine

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.

crack cocaine,

n a street drug made by chemically converting cocaine hydrochloride to a form that can be smoked. Smoking crack is a faster, more direct way of getting cocaine into the brain. The narcotic effect of smoking crack cocaine is faster and more intense than it is when injected, inhaled, or ingested. No medical application exists for crack cocaine. See cocaine.
References in periodicals archive ?
You don't have crackheads walking down your street.
Well, I suspect her glittering, golden world is about to come crashing down around her ears now because, if he's got any sense, Jefferson Hack, the father of their daughter Lila, will launch a custody battle to get his little girl away from his ex and all the crackheads she chooses to hang around with.
RAINIE AND TANYA ENDERS: In this superbly realistic and emotional story of Tanya's cancer, her former crackhead sister Rainie (right), finally forgives Tan for helping their dad to die.
Aside from caring for his practically non-existent flock, he must also contend with local crackhead Mick, alcoholic lost-soul Colin, scheming MPs and a sinister Archdeacon.
Those such as Kate Moss, her crackhead pal Pete Doherty, Christian Slater, Naomi Campbell, Jessie Wallace to name but a few who could do with a spell inside the House as well.
Mr Cluskey said: "He was a crackhead and he beat her up.
There's no doorman - an invitation for every whackhead, crackhead, mugger, burglar and New York crazy.
WHAT a busy day this is for Shirley - torn on the one hand between shielding soon-to-be-homeless Heather from the bailiffs and taking care of Phil, who's been a crackhead for a whole week now and has been locked in the Arches by Minty and Ricky.
He told Boleyn and former crackhead Taylor: "You were both entirely incapable of looking after yourselves, let alone a child.
Crackhead 2, by Angela Harrison, published by Debut Publishing, is available on order from bookshops.
He is to acting what crackhead Pete Doherty is to healthy living.
The Crackhead Jesus story is meant to highlight, with humor, the real dangers which exist in abuse of power by corrupt institutions.