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Müller-Lyer illusion
[ muhl-er-lahy-er, myoo-ler-, mil-er-; German myl-uhr-lee-uhr ]
noun
- a geometric illusion in which two lines of equal length appear unequal depending on whether angular lines forming arrowheads at each end point toward or away from each other.
Müller-Lyer illusion
/ ˈmuːləˈlaɪə /
noun
- an optical illusion in which a line with inward pointing arrowheads is seen as longer than an equal line with outward pointing arrowheads
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Word History and Origins
Origin of Müller-Lyer illusion1
After Franz-Karl Müller-Lyer (1857–1916), German sociologist, who described the illusion in 1889
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Word History and Origins
Origin of Müller-Lyer illusion1
C19: named after Franz Müller-Lyer (1857–1916), German sociologist and psychiatrist
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