'Gravitational' definitions:

Definition of 'gravitational'

From: WordNet
adjective
Of or relating to or caused by gravitation [syn: gravitational, gravitative]

Definition of 'Gravitational'

From: GCIDE
  • Gravitational \Grav`i*tation*al\, a. (Physics) Of or pertaining to the force of gravity; as, gravitational units. [1913 Webster]