1. A fissure. 2. See c. cocaine. [slang]
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crack 'krak n, often attrib a potent form of cocaine that is obtained by treating the hydrochloride of cocaine with sodium bicarbonate to create small chips used illicitly usu. for smoking
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(krak) 1. an incomplete split, break, or fissure. 2. sand c.Medical dictionary. 2011.