Interplanetary

(a.) Between planets; as, interplanetary spaces.

Thesaurus Entries

Cynthian, anagalactic, asteroidal, astral, astrologic, astrologistic, astrologous, astronomic, astrophysical, celestial, circumplanetary, cislunar, empyreal, empyrean, equinoctial, extragalactic, galactic, heavenly, heliacal, intercosmic, intersidereal, interstellar, lunar, lunary, lunate, lunular, lunulate, meteoric, meteoritic, nebular, nebulose, nebulous, planetal, planetarian, planetary, planetesimal, semilunar, sidereal, solar, sphery, star-spangled, star-studded, starry, stellar, stellary, terrestrial, uranic, zodiacal