Wiktionary

hallucination

English

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Etymology

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

Pronunciation

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Noun

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hallucination (countable and uncountable, plural hallucinations)

  1. A sensory perception of something that does not exist, often arising from disorder of the nervous system, as in delirium tremens.
    • 1871, William Alexander Hammond, A Treatise on the Diseases of the Nervous System:
      Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity.
    • 2022 December 18, Yan Zhuang, “How Can Tainted Spinach Cause Hallucinations?”, in The New York Times‎[1], →ISSN:
      The authorities said that the spinach had caused “possible food-related toxic reactions” with those affected experiencing symptoms including delirium, hallucinations, blurred vision, rapid heartbeat and fever.
  2. The act of hallucinating; a wandering of the mind; an error, mistake or blunder.
  3. (artificial intelligence) A confident but incorrect response given by an artificial intelligence; a confabulation.
    • 2022 August 8, Liam Tung, “Meta warns its new chatbot may forget that it's a bot”, in ZDNET‎[2]:
      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.
    • 2022 December 16, Farhad Manjoo, “ChatGPT Has a Devastating Sense of Humor”, in The New York Times‎[3], →ISSN:
      Hallucinations are about adhering to the truth; when A.I. systems get confused, they have a bad habit of making things up rather than admitting their difficulties.
    • 2023 January 10, Cade Metz, “A.I. Is Becoming More Conversational. But Will It Get More Honest?”, in The New York Times‎[4], →ISSN:
      It may tell you that the official currency of Switzerland is the euro (it’s actually the Swiss franc) or that Mark Twain’s Celebrated Jumping Frog of Calaveras County could not only jump but talk. A.I. researchers call this generation of untruths “hallucination.”
    • 2023 December 27, John Timmer, “NY Times sues Open AI, Microsoft over copyright infringement”, in Ars Technica‎[5]:
      The hallucinations common to AI also came under fire in the suit for potentially damaging the value of the Times' reputation, and possibly damaging human health as a side effect. “A GPT model completely fabricated that “The New York Times published an article on January 10, 2020, titled ‘Study Finds Possible Link between Orange Juice and Non-Hodgkin’s Lymphoma,’” the suit alleges. “The Times never published such an article.”

Derived terms

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Translations

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Further reading

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French

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Etymology

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Borrowed from Latin hallūcinātiōnem. By surface analysis, halluciner +‎ -ation.

Pronunciation

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Noun

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hallucination f (plural hallucinations)

  1. hallucination
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Descendants

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  • Turkish: halüsinasyon

Further reading

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Swedish

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Noun

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hallucination c

  1. a hallucination

Declension

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Declension of hallucination
nominative genitive
singular indefinite hallucination hallucinations
definite hallucinationen hallucinationens
plural indefinite hallucinationer hallucinationers
definite hallucinationerna hallucinationernas

See also

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References

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