Noun: freebase
- A purified, dry form of drug, esp. cocaine
"The police seized a large quantity of freebase during the raid"
- Use (purified cocaine) by burning it and inhaling the fumes
"The addict was caught free-basing in the abandoned building";
- base
Derived forms: free-basing, freebases, free-bases, free-based
Type of: do drugs [informal], drug
Encyclopedia: Freebase
Free-base