Mental or Behavioral Dysfunction
illusion Audio
il·lu·sion [ ih-loo-zhuhn ]
Subclass of:
Perceptual Disorders; Perception
Etymology:
Latin illusio = deception
Definitions related to illusions:
  • A misperception of a real external stimulus.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Misinterpretation of a real external, sensory experience.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Perceptual of a real external stimulus. Compare with hallucination.
    Sadock's Comprehensive Glossary of Psychiatry and Psychology
    BJ Sadock Titles Press, 2012
  • The misinterpretation of a real external, sensory experience.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • Illusion, a misrepresentation of a "real" sensory stimulus--that is, an interpretation that contradicts objective "reality" as defined by general agreement. For example, a child who perceives tree branches at night as if they are goblins may be said to be having an illusion. An illusion is...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
Try this search on: Farlex, Merriam-Webster, Oxford Dictionary, or Wordnik

This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.