Dictionary
optical illusion
noun
: something that looks different from what it is : something that you seem to see but that is not really there
Full Definition of OPTICAL ILLUSION
: illusion 2a(1)
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First Known Use of OPTICAL ILLUSION
1794
OPTICAL ILLUSION Defined for Kids
optical illusion
noun
Definition of OPTICAL ILLUSION for Kids
: something that looks different from what it actually is
Medical Dictionary
optical illusion
noun
Medical Definition of OPTICAL ILLUSION
: visual perception of a real object in such a way as to misinterpret its actual nature
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