Coriolis effect

Coriolis effect

[kawr-ee-oh-lis]
noun
the apparent deflection (Coriolis acceleration) of a body in motion with respect to the earth, as seen by an observer on the earth, attributed to a fictitious force (Coriolis force) but actually caused by the rotation of the earth and appearing as a deflection to the right in the Northern Hemisphere and a deflection to the left in the Southern Hemisphere.
Also called deflecting force.


Origin:
1965–70; named after Gaspard G. Coriolis (died 1843), French civil engineer

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Word Origin & History

Coriolis effect
1969 (earlier Coriolis force, 1923, and other references back to 1912), from the name of Fr. scientist Gaspard Gustave de Coriolis (17921843) who described it c.1835.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Science Dictionary
Coriolis effect   (kôr'ē-ō'lĭs)  Pronunciation Key 


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The observed effect of the Coriolis force, especially the deflection of objects or substances (such as air) moving along the surface of the Earth, rightward in the Northern Hemisphere and leftward in the Southern Hemisphere. The Coriolis effect is named after the French engineer Gustave Gaspard Coriolis (1792-1843).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary
Coriolis effect [(kawr-ee-oh-lis)]

An apparent force ultimately due to the rotation of the Earth. It is the Coriolis effect that makes the air in storms rotate counterclockwise in the northern hemisphere and clockwise in the southern hemisphere.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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