Word Study
interstellar
CIDE DICTIONARY
interstellar, a.
Between or among the stars; as, interstellar space. Bacon. [1913 Webster]
THESAURUS
interstellar
Cynthian, anagalactic, asteroidal, astral, astrologic, astrologistic, astrologous, astronomic, astrophysical, celestial, circumplanetary, cislunar, empyreal, empyrean, equinoctial, extragalactic, galactic, heavenly, heliacal, intercosmic, interplanetary, intersidereal, 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, zodiacalFor further exploring for "interstellar" in Webster Dictionary Online