n.
Function: noun
Date: 1980
: a purified solid form of cocaine (as crack) that is obtained by treating the powdered hydrochloride of cocaine with an alkaloid base (as sodium bicarbonate) and that can be smoked or heated to produce vapors for inhalation specifically : a form derived from treatment of the hydrochloride of cocaine with ammonia or similar alkaloid solution followed by extraction with a solvent (as ether)