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From Longman Dictionary of Contemporary English
Related topics: Physics
gravitationgrav‧i‧ta‧tion /ˌɡrævɪˈteɪʃən/ noun [uncountable]  technicalHP the force that causes two objects such as planets to move towards each other because of their massgravity Newton’s law of gravitation
Examples from the Corpus
gravitationHowever, the parallel between a linear acceleration and gravitation is conceptually simpler.Isaac Newton solved the final problem in the Copernican hypothesis by demonstrating that planetary motion was caused by gravitation.It is interesting to contrast gravitation with the other long-range force of nature - electromagnetism.It sounds almost like an adumbration of gravitation.Another major contribution by Newton was of course his law of gravitation.There was now a universal law of gravitation.Newton worried about that when his theory of gravitation required apparently instantaneous interaction between two distant objects.One example of a crucial event was the discovery of universal gravitation by Sir Isaac Newton in 1687.
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