planetary

1 a :  of, relating to, being, or resembling a planet b :  erratic, wandering c :  having a motion like that of a planet <planetary electrons> d :  immense <the scope of this project has reached planetary proportions>

2 a :  of, relating to, or belonging to the earth :  terrestrial b :  global, worldwide <planetary politics>

3 :  having or consisting of an epicyclic train of gear wheels