adj.1 heavenly; divinely good or beautiful; sublime.
2 a of the sky; of the part of the sky commonly observed in astronomy etc. b of heavenly bodies.
Phrases and idioms:
celestial equator the great circle of the sky in the plane perpendicular to the earth's axis. celestial horizon see HORIZON 1c. celestial navigation navigation by the stars etc.
Derivatives:
celestially adv.
Etymology: ME f. OF f. med.L caelestialis f. L caelestis: see CELESTE