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Coriolis effect

[kawr-ee-oh-lis] /ˌkɔr iˈoʊ lɪs/
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 of Coriolis effect
1965-70; named after Gaspard G. Coriolis (died 1843), French civil engineer Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Word Origin and History for Coriolis effect

1969 (earlier Coriolis force, 1923, and other references back to 1912), from the name of French scientist Gaspard Gustave de Coriolis (1792-1843) who described it c.1835.

Online Etymology Dictionary, © 2010 Douglas Harper
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Coriolis effect in Science
Coriolis effect

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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Coriolis effect in Culture
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 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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