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a poisonous alkaloid derived from the flowering heads (mescal buttons) of a Mexican cactus; it is a hallucinogen, producing hallucinations of sound and color.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
The most active alkaloid present in the buttons of the mescal cactus, Lophophora williamsii. Mescaline produces psychotomimetic effects similar to those produced by LSD: alteration in mood, changes in perception, reveries, visual hallucinations, delusions, depersonalization, mydriasis, hippus, and increases in body temperature and blood pressure; psychic dependence, tolerance, and cross-tolerance to LSD and psilocybin develop; the principal component of peyote; 3,4,5-trimethoxyphenylethylamine.
Farlex Partner Medical Dictionary © Farlex 2012
A hallucinogenic alkaloid, C11H17NO3, obtained from peyote buttons and used by certain Native American tribes in religious rituals and illicitly as a recreational drug.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
mescalineA hallucinogenic psychotropic alkaloid derived from the peyote cactus (Lophophora williamsii), which is similar to indole alkaloids (e.g., psilocin, bufotenin, ibogaine) and LSD.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
mescalineSubstance abuse A hallucinogenic psychotropic alkaloid, derived from the peyote cactus–Lophophora williamsii; it is similar to indole alkaloids–eg, psilocin, bufotenin, ibogaine, and LSD. See Hallucinogen.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
Naturally occurring psychedelic drug in long use, especially in Native American religious ceremonies; produces visual hallucinations and radically altered states of consciousness, often experienced as pleasurable and illuminating but occasionally as anxious or revolting. Schedule I hallucinogen; considered a poisonous alkaloid. Also called peyote.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
mescalinea psychoactive drug that produces hallucinatory effects in humans probably by interfering with NORADRENALINE at nerve synapses.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
The most active alkaloid present in the buttons of the mescal cactus, Lophophora williamsii. Has psychotomimetic effects similar to those produced by lysergic acid diethylamide (LSD).
Medical Dictionary for the Dental Professions © Farlex 2012