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optical illusion

noun

Simple Definition of optical illusion

  • : something that looks different from what it is : something that you seem to see but that is not really there

Source: Merriam-Webster's Learner's Dictionary

Full Definition of optical illusion

  1. :  illusion 2a(1)

Examples of optical illusion in a sentence

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



1794

First Known Use of optical illusion

1794


OPTICAL ILLUSION Defined for Kids

optical illusion

noun

Definition of optical illusion for Students

  1. :  something that looks different from what it actually is




Medical Dictionary

optical illusion

noun

Medical Definition of optical illusion

  1. :  visual perception of a real object in such a way as to misinterpret its actual nature




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