optical illusion


optical illusion
noun
an optical phenomenon that results in a false or deceptive visual impression
Hypernyms: ↑optical phenomenon
Hyponyms: ↑apparent motion, ↑motion, ↑apparent movement, ↑movement, ↑mirage

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noun, pl ⋯ -sions [count]
: something that looks different from what it is : something that you seem to see but that is not really there

The closer building looks larger than the farther one, but it's just an optical illusion. The two buildings are actually the same size.

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ˌoptical ilˈlusion [optical illusion] noun
something that tricks your eyes and makes you think that you can see sth that is not there, or makes you see sth as different from what it really is

Useful english dictionary. 2012.

Look at other dictionaries:

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  • optical illusion — n. an illusion resulting from certain visual effects that cause a viewer to misunderstand or misinterpret what he or she actually sees …   English World dictionary

  • optical illusion — n visual perception of a real object in such a way as to misinterpret its actual nature …   Medical dictionary

  • optical illusion — ► NOUN ▪ a thing that deceives the eye by appearing to be other than it is …   English terms dictionary

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  • optical illusion —    The term optical illusion is used in a narrow and a broad sense. In the narrow sense, it denotes an illusion attributable to the optics of the eye. In the broad sense, it is used as an equivalent of the term visual illusion, denoting any… …   Dictionary of Hallucinations

  • optical illusion — UK / US noun [countable] Word forms optical illusion : singular optical illusion plural optical illusions something that looks very different from what it really is, usually because of the way that it is drawn or lit …   English dictionary

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