Empyreal (?), a. [L. empyrius, empyreus, fiery, Gr. &unr_;, &unr_;, in fire, fiery; &unr_; in + &unr_; fire. See In, and Fire.] Formed of pure fire or light; refined beyond aërial substance; pertaining to the highest and purest region of heaven.
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Go, soar with Plato to the empyreal sphere. Pope.
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Empyreal air, oxygen gas.
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