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universal gravitation

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Gravitation \Grav"i*ta"tion\, n. [Cf. F. gravitation. See
   Gravity.]
   1. The act of gravitating.

   2. (Pysics) That species of attraction or force by which all
      bodies or particles of matter in the universe tend toward
      each other; called also {attraction of gravitation},
      {universal gravitation}, and {universal gravity}. See
      {Attraction}, and {Weight.}

   {Law of gravitation}, that law in accordance with which
      gravitation acts, namely, that every two bodies or
      portions of matter in the universe attract each other with
      a force proportional directly to the quantity of matter
      they contain, and inversely to the squares of their
      distances.
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