/ səˈlestiəl; NAmE -tʃl/ adjective
[ usually before noun ] ( formal or literary ) of the sky or of heaven :
celestial bodies (= the sun, moon, stars, etc.)
celestial light / music
—compare terrestrial
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WORD ORIGIN
late Middle English : via Old French from medieval Latin caelestialis , from Latin caelestis , from caelum heaven.