ETHER


Meaning of ETHER in English

transcription, транскрипция: [ ˈē-thər ]

noun

Etymology: Middle English, from Latin aether, from Greek aithēr, from aithein to ignite, blaze; akin to Old English ād pyre — more at edify

Date: 14th century

1.

a. : the rarefied element formerly believed to fill the upper regions of space

b. : the upper regions of space : heavens

2.

a. also ae·ther : a medium that in the wave theory of light permeates all space and transmits transverse waves

b. : airwaves

3.

a. : a light volatile flammable liquid C 4 H 10 O 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

• ethe·ric i-ˈther-ik, -ˈthir- adjective

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.