extraplanetary

[ ek-struh-plan-i-ter-ee ]

adjective

1. existing or occurring in outer space beyond a planet, especially away from the planet Earth.

Word History and Origins

Origin of extraplanetary¹

First recorded in 1865–70; extra- + planetary

Example Sentences

Not necessarily, but it seems our iron-age man is fairly well informed in extraplanetary affairs.

From Project Gutenberg