English Explanatory Dictionary

Ponzo illusion

English dictionary entry

Meanings

noun
  1. An optical illusion whereby a horizontal bar looks wider when farther up a picture of railroad tracks than when lower.

Word forms

Ponzo illusion Ponzo illusions

Etymology

First demonstrated by the Italian psychologist Mario Ponzo (1882–1960) in 1911.

This entry uses open data from Wiktionary (CC BY-SA/GFDL). Word forms are used for search and are not indexed as separate pages.
Back to search All on P Russian dictionary Dahl dictionary