1. freebase - Noun
2. freebase - Verb
(chemistry) The purified, dry form of an amine, especially an alkaloid natural product, that is normally used in solution.
(specifically) The purified, dry form of certain illegal drugs, especially cocaine.
To purify a drug by crystallization.
To use a purified drug, especially cocaine, by heating it and inhaling the fumes produced.
Source: en.wiktionary.orgIts freebase form, although less stable than DMT fumarate, is favored by recreational users choosing to vaporize the chemical as it has a lower boiling point. Source: Internet
Smoking freebase cocaine has the additional effect of releasing methylecgonidine into the user's system due to the pyrolysis of the substance (a side effect which insufflating or injecting powder cocaine does not create). Source: Internet
Juul combines freebase nicotine with benzoic acid in its e-liquid, creating a chemical reaction that produces the nicotine salts. Source: Internet
Crack is the smokable, freebase form of the street drug cocaine. Source: Internet
To be clear, you don't have to turn cocaine into crack to "freebase" it. Source: Internet