from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The branch of pharmacology that deals with the study of the actions, effects, and development of psychoactive drugs.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The branch of pharmacology which pertains to the psychoactive aspects of drugs.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the study of drugs that affect the mind
psycho- + pharmacology (Wiktionary)