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mind-expanding

[mahynd-ik-span-ding]
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adjective
  1. heightening perceptions in a hallucinatory way: mind-expanding drugs.
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Origin of mind-expanding

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for mind-expanding

mind-expanding

adjective
  1. (of a drug such as LSD) causing a sensation of heightened consciousness; psychedelic
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

mind-expanding in Medicine

mind-expanding

adj.
  1. Producing intensified or distorted perceptions; psychedelic.
  2. Producing an increased perceptive awareness.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.