grav·i·sphere 
(grăvĭ-sfîr′)
(grăvĭ-sfîr′)n.
The spherical region of space dominated by the gravitational field of a celestial body.
[GRAVI(TY) + SPHERE.]
- macrocephalous
- macrocephaly
- macroclimate
- macroclimatic
- macrocode
- macrocosm
- macrocosmic
- macrocosmically
- macrocycle
- macrocyclic
- macrocyte
- macrocytic
- macrocytosis
- macrocytotic
- macroevolution
- macroevolutionary
- macrofauna
- macrofaunal
- macrofossil
- macrogamete
- macroglobulin
- macroglobulinemia
- macroglossia
- macrograph
- macrography