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or free-base (frē′bās′)
v. free·based, free·bas·ing, free·bas·es or free-based or free-bas·ing or free-bas·es
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.
To prepare or use cocaine purified in this way.
Cocaine purified by this method.

free′bas′er n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend: - use (purified cocaine) by burning it and inhaling the fumesfree-base - use (purified cocaine) by burning it and inhaling the fumes
do drugs, drug - use recreational drugs
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Instead of free-base nicotine, JUUL pods are filled with a proprietary e-liquid formula that combines glycerol, propylene glycol, natural oils, extracts and flavor, nicotine and benzoic acid, according to the company's website.
The metal free-base [H.sub.2]TPP was synthesized by the conventional method of condensation of benzaldehyde with pyrrole by modified Adler method [18].