English

Adjective

planetside ‎(not comparable)

1. (science fiction) On a planet.
   • 2002, David Weber, Steve White, The Shiva option

     For Kincaid, that planet represented the chance to finally take part in a planetside assault out of the Marine legends on which he'd been weaned—a chance this mass butchery misnamed a war had offered in all too short supply.

Adverb

planetside ‎(not comparable)

1. (science fiction) On or to a planet.

See also

• earthside