optical illusion
noun
See under illusion (def. 4).
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Origin of optical illusion
First recorded in 1785–95
Words nearby optical illusion
optical effects, optical fiber, optical fibre, optical flint, optical glass, optical illusion, optical image, optical isomer, optical isomerism, optical mark reading, optical maser
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
Example sentences from the Web for optical illusion
The trouble about the optical-illusion view is, that it makes the day too long.
The Works of Robert G. Ingersoll, Vol. 5 (of 12)|Robert G. IngersollIn this illustration it is seen that the optical-illusion idea has taken definite form.
Visual Illusions|Matthew Luckiesh
British Dictionary definitions for optical illusion
optical illusion
noun
an object causing a false visual impression
an instance of deception by such an object
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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