from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A spineless, dome-shaped cactus (Lophophora williamsii) native to Mexico and the southwest United States, having buttonlike tubercles that are chewed fresh or dry as a narcotic drug by certain Native American peoples. Also called mescal.
  • n. See mescal button.
  • n. See mescaline.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A small, spineless cactus (Lophophora williamsii) found from southwest United States to central Mexico that produces buttonlike tubercles that can be chewed for its psychedelic effect, primarily from the drug mescaline. Also called mescal.
  • n. A mescal button produced by the plant.

from The Century Dictionary and Cyclopedia

  • n. A name applied in certain parts of Mexico to several low, fleshy, spineless plants, especially to Lophophora Williamsii, which is used medicinally and has narcotic properties. Also written pellotè. See mescal-buttons.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the hallucinatory alkaloid that is the active agent in mescal buttons
  • n. a small spineless globe-shaped cactus; source of mescal buttons


American Spanish, from Nahuatl peyotl.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Spanish, from Classical Nahuatl peyotl. (Wiktionary)



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