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hallucination

[huh-loo-suh-ney-shuh n] /həˌlu səˈneɪ ʃən/
noun
1.
a sensory experience of something that does not exist outside the mind, caused by various physical and mental disorders, or by reaction to certain toxic substances, and usually manifested as visual or auditory images.
2.
the sensation caused by a hallucinatory condition or the object or scene visualized.
3.
a false notion, belief, or impression; illusion; delusion.
Origin
1640-1650
1640-50; < Latin hallūcinātiōn- (stem of (h)allūcinātiō) a wandering of the mind. See hallucinate, -ion
Related forms
hallucinational, hallucinative
[huh-loo-suh-ney-tiv, -nuh-tiv] /həˈlu səˌneɪ tɪv, -nə tɪv/ (Show IPA),
adjective
nonhallucination, noun
Can be confused
allusion, delusion, elusion, hallucination, illusion (see synonym study at illusion)
Synonyms
1. phantasm, aberration. See illusion.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for hallucinative

hallucination

/həˌluːsɪˈneɪʃən/
noun
1.
the alleged perception of an object when no object is present, occurring under hypnosis, in some mental disorders, etc
Derived Forms
hallucinational, hallucinative, hallucinatory, adjective
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
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Word Origin and History for hallucinative

hallucination

n.

in the pathological/psychological sense of "seeing or hearing something which is not there," 1640s, from Latin hallucinationem (nominative hallucinatio), from past participle stem of hallucinari (see hallucinate). Hallucination is distinct from illusion in not necessarily involving a false belief. Related: Hallucinations.

Online Etymology Dictionary, © 2010 Douglas Harper
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hallucinative in Medicine

hallucination hal·lu·ci·na·tion (hə-lōō'sə-nā'shən)
n.

  1. False or distorted perception of objects or events with a compelling sense of their reality, usually resulting from a mental disorder or drug.

  2. The objects or events so perceived.


hal·lu'ci·nate' v.
hal·lu'ci·na'tion·al or hal·lu'ci·na'tive adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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hallucinative in Culture

hallucination definition


A false perception that appears to be real, as when, for example, a man dying of thirst in a desert thinks that he sees a lake. (See also delusion.)

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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