Pronunciation: (em-pir'ē-ul, -pī'rē-, em"pu-rē'ul, -pī-), [key]
1. pertaining to the highest heaven in the cosmology of the ancients.
2. pertaining to the sky; celestial: empyreal blue.
3. formed of pure fire or light: empyreal radiance. Also,empyrean.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.