Definitions for crack cocaine
A mixture of baking soda and cocaine in solid form that is smoked in a pipe as a narcotic.
A mixture of salt substitute, ether, and cocaine in a semi-liquid form, which is far more potent than if made with baking soda alone.
Origin: So named due to the break up (crack, cracking) of crystals of cocaine during its manufacture.
U.S. National Library of Medicine
The purified, alkaloidal, extra-potent form of cocaine. It is smoked (free-based), injected intravenously, and orally ingested. Use of crack results in alterations in function of the cardiovascular system, the autonomic nervous system, the central nervous system, and the gastrointestinal system. The slang term "crack" was derived from the crackling sound made upon igniting of this form of cocaine for smoking.
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