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Hallucination

//həˌluːsɪˈneɪʃən// noun

Definitions

Noun
  1. 1
    A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens. countable, uncountable

    "Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity."

  2. 2
    an object perceived during a hallucinatory episode wordnet
  3. 3
    The act of hallucinating; a wandering of the mind; an error, mistake or blunder. countable, uncountable

    "This must have been the hallucination of the transcriber."

  4. 4
    a mistaken or unfounded opinion or idea wordnet
  5. 5
    A confident but incorrect response given by an artificial intelligence; a confabulation. countable, uncountable

    "Chatbots even forget that they are a bot and experience "hallucinations", Meta's description for when a bot confidently says something that is not true."

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  1. 6
    illusory perception; a common symptom of severe mental disorder wordnet

Etymology

Derives from the verb hallucinate, from Latin hallucinatus. Compare French hallucination. The first known usage in the English language is from Sir Thomas Browne.

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