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The Collaborative International Dictionary
Empyreumatical

Empyreumatic \Em`py*reu*mat"ic\, Empyreumatical \Em`py*reu*mat"ic*al\, a. [Cf. F. empyreumatique.] Of or pertaining to empyreuma; as, an empyreumatic odor.

Empyreumatic oils, oils obtained by distilling various organic substances at high temperatures.
--Brande & C.

Wiktionary
empyreumatical

a. (alternative form of empyreumatic English)