Webster's English Dictionary

Enter the word to look up:

gravitation

grav.i.ta.tion \.grav-*-'ta--sh*n\ \-shn*l, -sh*n-*l\ \-e-\ 
   \'grav-*-.ta-t-iv\ n 1a: a force manifested by acceleration toward each 
   other of two free materi al particles or bodies or of radiant-energy quanta 
   1b: the action or process of gravitating  2: an attraction to something  - 
   grav.i.ta.tion.al aj