Gravitational - adjective - ɡrævɪˈteɪʃənəl
of or relating to or caused by gravitation
Example: 1. By mapping the gravitational field, lunar scientists can tell where mass is hidden below the surface. 2. Subtle shifts in pulsar timing could hint at vast gravitational waves. 3. Mathematically, scientists represent the gravitational field in terms of spherical harmonics, which quantify undulations on different angular scales.