ether
Nouns
- (n) the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies quintessence,
- (n) any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom
- (n) a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves aether,
- (n) a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic diethyl ether, divinyl ether, ethoxyethane, ethyl ether, vinyl ether,