Definition of FitzGerald contraction in English:

Share this entry

FitzGerald contraction

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.

For editors and proofreaders

Line breaks: Fitz¦Gerald con|trac¦tion

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.