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Coriolis effect

[kawr-ee-oh-lis] /ˌkɔr iˈoʊ lɪs/
noun
1.
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
1965-1970
1965-70; named after Gaspard G. Coriolis (died 1843), French civil engineer
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for coriolis force

Coriolis force

/ˌkɒrɪˈəʊlɪs/
noun
1.
a fictitious force used to explain a deflection in the path of a body moving in latitude relative to the earth when observed from the earth. The deflection (Coriolis effect) is due to the earth's rotation and is to the east when the motion is towards a pole
Word Origin
C19: named after Gaspard G. Coriolis (1792–1843), French civil engineer
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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Contemporary definitions for coriolis force
noun

a force which, due to the Earth's rotation, acts on a body in motion; an apparent force deflecting the motion of an object or a fluid moving over the surface of a rotating body such as a planet or star

Word Origin

from C.G. Coriolis, French mathematician and engineer

Usage Note

science

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Copyright © 2003-2014 Dictionary.com, LLC
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Word Origin and History for coriolis force
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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coriolis force in Science
Coriolis effect
  (kôr'ē-ō'lĭs)   

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).
Coriolis force  
A velocity-dependent pseudo force used mathematically to describe the motion of bodies in rotating reference frames such as the Earth's surface. Bodies moving on the plane of rotation appear to experience a force, leftward if the rotation of the reference frame is clockwise, rightward if counterclockwise. Such motion gives rise to the Coriolis effect.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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coriolis force 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 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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