Hallucination
WordNet
noun
(1) An object perceived during a hallucinatory episode
"He refused to believe that the angel was a hallucination"
(2) A mistaken or unfounded opinion or idea
"He has delusions of competence"
"His dreams of vast wealth are a hallucination"
(3) Illusory perception; a common symptom of severe mental disorder
WiktionaryText
Etymology
Derives from verb to hallucinate, from hallucinatus. Compare French hallucination. The first known usage in the English language is from Sir Thomas Browne.
Noun
- A sensory perception of something that does not exist, arising from disorder of the nervous system, as in delirium tremens; a delusion.
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- Hallucinations are always evidence of cerebral derangement and are common phenomena of insanity. - W. A. Hammond
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- The act of hallucinating; a wandering of the mind; an error, mistake or blunder.
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- This must have been the hallucination of the transcriber. - Joseph Addison
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