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celestial mechanics

noun
1.
the branch of astronomy that deals with the application of the laws of dynamics and Newton's law of gravitation to the motions of heavenly bodies.
Origin
1815-1825
1815-25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for celestial-mechanics

celestial mechanics

noun
1.
the study of the motion of celestial bodies under the influence of gravitational fields
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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celestial-mechanics in Science
celestial mechanics  
The science of the motion of celestial bodies under the influence of gravitational forces. See more at Kepler's laws of planetary motion, relativity.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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11
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