Optical Illusion Definition
noun
An illusion resulting from any of various visual effects that cause a viewer to misunderstand or misinterpret what he or she actually sees.
Webster's New World
A visually perceived image that is deceptive or misleading.
American Heritage
They can create new objects or images out of different objects. Small images of birds, for example, might come together in an optical illusion to reveal a man’s face.
YourDictionary
There are the optical illusions that excessively stimulate the brain with an overwhelming light, tilt, or color.
YourDictionary
Some optical illusions are cognitive illusions, in which the brain makes inferences when it views a certain object.
An example of an optical illusion is two people facing each other, nose to nose. The faces themselves are black, and the space between them is white. If you look hard enough, you will see a vase between the vases, comprised of the white space. Some people see the vase first, and upon further gazing, see the two people facing each other.
An example of an optical illusion is an image created to be paradoxical in nature, such as a staircase drawn to appear that it is going up or down.
YourDictionary
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Other Word Forms of Optical Illusion
Noun
Singular:
optical illusion
Plural:
optical-illusions
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