Definition of FitzGerald contraction in English:

FitzGerald contraction

Line breaks: Fitz¦Gerald con|trac¦tion
Pronunciation: /fɪtsˈdʒɛr(ə)ld
(also FitzGerald–Lorentz contraction)


  • The shortening of a moving body in the direction of its motion, especially at speeds close to that of light.


named after George. F. FitzGerald (1851–1901), Irish physicist, and H. A. Lorentz (see Lorentz, Hendrik Antoon), who independently postulated the theory in 1892.

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