Freebasenoun
(chemistry) The purified, dry form of an amine, especially an alkaloid natural product, that is normally used in solution.
Freebasenoun
(specifically) The purified, dry form of certain illegal drugs, especially cocaine.
Freebaseverb
To purify a drug by crystallization.
Freebaseverb
To use a purified drug, especially cocaine, by heating it and inhaling the fumes produced.
Fumaratenoun
Any salt or ester of fumaric acid; they are produced in the body as part of the urea cycle.
Fumaratenoun
A salt of fumaric acid.