Definition of ether
1a : the rarefied element formerly believed to fill the upper regions of space
b : the upper regions of space : heavens
2a : a light volatile flammable liquid C4H10O used chiefly as a solvent and especially formerly as an anesthetic
b : any of a class of organic compounds characterized by an oxygen atom attached to two carbon atoms
b : airwaves
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Time Traveler for ether
The first known use of ether was in the 14th century
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