- Noun. (pharmacology) A substance used to treat an illness, relieve a symptom, or modify a chemical process in the body for a specific purpose.
- Noun. (pharmacology) A substance, sometimes addictive, which affects the central nervous system.
- Noun. A chemical or substance, not necessarily for medical purposes, which alters the way the mind or body works.
- Noun. A substance, especially one which is illegal, ingested for recreational use.
- Verb. (transitive) To administer intoxicating drugs to, generally without the recipient's knowledge or consent.
- Verb. (transitive) To add intoxicating drugs to with the intention of drugging someone.
- Verb. (context, Southern) (past of, drag) .