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FitzGerald contraction

noun, Physics.
the hypothesis that a moving body exhibits a contraction in the direction of motion when its velocity is close to the speed of light.
Also called FitzGerald-Lorentz contraction
[fits-jer-uh ld lawr-ents, -lohr-] /fɪtsˈdʒɛr əld ˈlɔr ɛnts, -ˈloʊr-/ (Show IPA),
Lorentz-FitzGerald contraction, Lorentz contraction, length contraction.
Origin of FitzGerald contraction
First recorded in 1915-20; named after G. F. FitzGerald Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for fitzgerald-lorentz contraction

Fitzgerald-Lorentz contraction

(physics) the contraction that a moving body exhibits when its velocity approaches that of light
Word Origin
C19: named after G. F. Fitzgerald (1851–1901), Irish physicist, and H. A. Lorentz
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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