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Kanizsa triangle
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English
Etymology
Named after Gaetano Kanizsa.
Noun
thumb|225px|right|A Kanizsa triangle.
An optical illusion in which a number of spatially separated fragments give the illusory impression of the contours of a triangle.
en 2019 w:Bill Bryson The Body: A Guide for Occupants Black Swan (2020) 67 It is called a Kanizsa triangle, after the Italian psychologist Gaetano Kanizsa, who created it in 1955.
en eponyms
en Optical illusions