Gravitation \Grav"i*ta"tion\, n. [Cf. F. gravitation. See
Gravity.]
1. The act of gravitating.
[1913 Webster]
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.}
[1913 Webster]
{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.
[1913 Webster]