Hallucination - Dictionary Definition and Overview

Hallucination :  (noun)
1: illusory perception; a common symptom of severe mental disorder
2: a mistaken or unfounded opinion or idea; "he has delusions of competence"; "his dreams of vast wealth are a hallucination" [syn: delusion]
3: an object perceived during a hallucinatory episode; "he refused to believe that the angel was a hallucination"

Based on WordNet 2.0

Hallucination : \Hal*lu`ci*na"tion\, n. [L. hallucinatio: cf. F. hallucination.] 1. The act of hallucinating; a wandering of the mind; error; mistake; a blunder.

This must have been the hallucination of the transcriber. --Addison.

Based on Webster's Revised Unabridged Dictionary

HALLUCINATION, med. jur. It is a species of mania, by which "an idea reproduced by the memory is associated and embodied by the imagination." This state of mind is sometimes called delusion or waking dreams. 2. An attempt has been made to distinguish hallucinations from illusions; the former are said to be dependent on the state of the intellectual organs and, the latter, on that of those of sense. Ray, Med. Jur. Sec. 99; 1 Beck, med. Jur. 538, note. An instance is given of a temporaryHallucination : in the celebrated Ben Johnson, the poet. He told a friend of his that he had spent many a night in looking at his great toe, about which he had seen Turks and Tartars, Romans and Carthagenians, fight, in his imagination. 1 Coll. on Lun. 34. If, instead of being temporary, this affection of his mind had been permanent, he would doubtless have been considered insane. See, on the subject of spectral illusions, Hibbert, Alderson and Farrar's Essays; Scott on Demonology, &c.; Bostock's Physiology, vol. 3, p. 91, 161; 1 Esquirol, Maladies Mentales, 159.

Based on Bouvier's Law Dictionary, Revised 6th Ed (1856) [Bouvier_Law_Dictionary]:

Hallucination :  Hallucination: A profound distortion in a person's perception of reality, typically accompanied by a powerful sense of reality. An hallucination may be a hypnagogic hallucination is a vivid dreamlike hallucination at the onset of sleep.
  • Hypnopompic hallucination is a vivid dreamlike hallucination on awakening.
  • Kinesthetic hallucination is an hallucination involving the sense of bodily movement.
  • Lilliputian hallucination is an hallucination in which things, people, or animals seem smaller than they would be in reality.
  • Olfactory hallucination is an hallucination involving the sense of smell.
  • Somatic hallucination is an hallucination involving the perception of a physical experience occurring with the body.
  • Tactile hallucination is an hallucination involving the sense of touch.
  • Visual hallucination is an hallucination involving the sense of sight.

    Based on Bouvier's Law Dictionary, Revised 6th Ed (1856) [Bouvier_Law_Dictionary]:
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