Ether

noun

'iθər

Noun

a colorless volatile highly flammable liquid formerly used as an inhalation anesthetic
Similar:Ethoxyethane
a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves
Similar:Aether
Type of:Medium
the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies
Similar:Quintessence
Type of:Element
any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom