adjective. Empyrean.

adjective. Of the sky; celestial.

adjective. Elevated; sublime.

Formed of pure fire or light; pertaining to the highest and purest region of heaven; pure.

noun. The empyrean; the region of celestial purity.

adjective. Formed of pure fire or light; refined beyond aërial substance; pertaining to the highest and purest region of heaven.

adjective. oxygen gas.

noun. Empyrean.

adjective. Pertaining to the highest heaven or the empyrean; celestial; sublime; exalted.

adjective. Of the sky or heavens.

adjective. Fiery, made of pure fire.

adjective. inspiring awe

adjective. of or relating to the sky or heavens

"In this remarkable book he tells of his discovery of oxygen -- "empyreal" or "fire-air," as he calls it -- which he seems to have made independently and without ever having heard of the previous discovery by Priestley."

glorious  

archiepiscopal  armillary  bedrock  etherial  everlasting  

celestial  empyrean  exalted  fiery  heavenly