Also found in: Idioms.
cactus buttonsA regional term for the raw material—peyote, Lophophora williamsii—from which the psychoactive agent mescaline is derived.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
cactus buttonsDrug slang A popular term for mescaline. See Mescaline.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.