Collection: Aether

[etε: R]. Aether Borrowed From Classical Latin / Ancient Greek Αἰθήρ/ Aithếr / From Αἴθω / aíthô  "Burn" / Spiritus Aethereus / Aithêr (« Pure Air, Aether ») (Encyclop. And Encyclop. Brit., Sv Ether).
I − [speaking of a Hypothetical Fluid ][physics]  Subtlest and Highest Part of the Atmosphere Where the Pure Air is Found.[metaphysics] "Fifth Element" (With Fire, Air, Water and Earth)
Ii − [speaking of a Chemically Defined Body][chemistry] Very Volatile Spirit Obtained by Distilling a Mixed Acid With Alcohol.[medicine] Colourless Liquid With a Characteristic Odour, Used in Industry as a Solvent and in Medicine as an Anaesthetic and in Particular Used as a Narcotic. “a Veritable Atmosphere of Mass Hysteria Amongst Epileptics and Ether Addicts” (Huysmans, Là-bas,  1891)