freebase

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freebase

or

free-base

(frē′bās′)
v. free·based, free·basing, free·bases
v.tr.
1. To purify (cocaine) by treating its powdered hydrochloride form with an alkaloid solution such as ammonia and then using a heated solvent to separate out the precipitate.
2. To use (cocaine purified in this way) by smoking it or by inhaling the fumes after burning it.
v.intr.
To prepare or use cocaine purified in this way.
n.
Cocaine purified by this method.

free′bas′er n.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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