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celestial mechanics

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celestial mechanics

–noun
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:
1815–25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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celestial mechanics  
n.   (used with a sing. verb)
The science of the motion of celestial bodies under the influence of gravitational forces.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Science Dictionary
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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