The definition of celestial is relating to the sky or heavens or the spiritual heaven.(adjective)
A celestial is defined as a dweller of heaven.(noun)
An example of celestial is an angel.
See celestial in Webster's New World College Dictionary
Origin: ME & OFr < L caelestis < caelum, heaven: for IE base see chintz
See celestial in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old French
Origin: , from Medieval Latin celestiālis
Origin: , from Latin caelestis
Origin: , from caelum, sky.
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