Cocaine
n.
A powerful narcotic alkaloid, C17H21NO4 , obtained from the leaves of coca. It is a bitter, white, crystalline substance, and is remarkable for producing local insensibility to pain. It is classified as addictive and is not available in the U. S. without a prescription, but is nevertheless one of the most widespread illegal drugs of abuse. It is used in several forms, including small pellets of free base, called crack . Most of the cacaine illegally used in the U.S. is imported.
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