heteroptics

[ het-uh-rop-tiks ]
/ ˌhɛt əˈrɒp tɪks /

noun (used with a singular verb)

incorrect or perverted perception of what is seen; hallucinatory vision.

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Origin of heteroptics

First recorded in 1705–15; heter- + optics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020