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⇱ hallucination - WordReference.com Dictionary of English


hallucination

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UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/həˌluːsɪˈneɪʃən/

US:USA pronunciation: IPAUSA pronunciation: IPA/həˌlusəˈneɪʃən/

US:USA pronunciation: respellingUSA pronunciation: respelling(hə lo̅o̅′sə nāshən)



WordReference Random House Learner's Dictionary of American English © 2026
hal•lu•ci•na•tion /həˌlusəˈneɪʃən/USA pronunciation   n. [countable]
  1. Psychiatryperception of something that does not exist, caused by various diseases, or by reaction to toxic substances or drugs:This drug causes bizarre hallucinations.
hal•lu•ci•na•to•ry /həˈlusənəˌtɔri/USA pronunciation  adj. 

WordReference Random House Unabridged Dictionary of American English © 2026
hal•lu•ci•na•tion  (hə lo̅o̅′sə nāshən),USA pronunciation n. 
  1. Psychiatrya 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. Psychiatrythe sensation caused by a hallucinatory condition or the object or scene visualized.
  3. a false notion, belief, or impression; illusion;
    delusion.
  • Latin hallūcinātiōn- (stem of (h)allūcinātiō) a wandering of the mind. See hallucinate, -ion
  • 1640–50
    1. phantasm, aberration. See illusion. 

Collins Concise English Dictionary © HarperCollins Publishers::
hallucination /həˌluːsɪˈneɪʃən/ n
  1. the alleged perception of an object when no object is present
halˌluciˈnational, halˈlucinative, halˈlucinatory adj
'hallucination' also found in these entries (note: many are not synonyms or translations):

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