Kanizsa triangle

English

Etymology

Named after Gaetano Kanizsa.

Noun

Kanizsa triangle (plural Kanizsa triangles)

A Kanizsa triangle.

1. An optical illusion in which a number of spatially separated fragments give the illusory impression of the contours of a triangle.
   • 2019, Bill Bryson, The Body: A Guide for Occupants, Black Swan (2020), page 67:

     It is called a Kanizsa triangle, after the Italian psychologist Gaetano Kanizsa, who created it in 1955.