freebase noun 2verb 2forms 3 noun2 •The purified, dry form of an amine, especially an alkaloid natural product, that is normally used in solution.The freebase is heated in a retort, foil, or other container and the vapor is inhaled as the freebase vaporizes. — 1987 •The purified, dry form of certain illegal drugs, especially cocaine.That day, I gave a class on making and using freebase. This was one thing that was to be done perfectly, or you could end up with glass and freebase all over you. — 2011 verb2 •To purify a drug by crystallization. •To use a purified drug, especially cocaine, by heating it and inhaling the fumes produced. formsfreebased · freebasing · freebases
