Definition of space-bound in US English:

space-bound

adjective

  • Bound or limited by the properties of space.

adjective

Astronautics
  • Heading to outer space; destined for (use in) space.

Origin

1930s; earliest use found in American Political Science Review. From space + bound<br>1950s; earliest use found in Idaho State Journal. From space + bound.

Pronunciation

space-bound

/ˈspeɪsbaʊnd/