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Definitions for Ether

[1] Also called diethyl ether, diethyl oxide, ethyl ether, ethyl oxide, sulfuric ether. Chemistry , Pharmacology . a colorless, highly volatile, flammable liquid, C4 H10 O, having an aromatic odor and sweet, burning taste, derived from ethyl alcohol by the action of sulfuric acid: used as a solvent and, formerly, as an inhalant anesthetic.
[2] Chemistry . (formerly) one of a class of compounds in which two organic groups are attached directly to an oxygen atom, having the general formula ROR.
[3] the upper regions of space; the clear sky; the heavens.
[4] the medium supposed by the ancients to fill the upper regions of space.
[5] Physics . a hypothetical substance supposed to occupy all space, postulated to account for the propagation of electromagnetic radiation through space.
[6] Also called: diethyl ether , ethyl ether , ethoxyethane a colourless volatile highly flammable liquid with a characteristic sweetish odour, made by the reaction of sulphuric acid with ethanol: used as a solvent and anaesthetic. Formula: C 2 H 5 OC 2 H 5
[7] any of a class of organic compounds with the general formula ROR′ where R and R′ are alkyl groups, as in diethyl ether C 2 H 5 OC 2 H 5
[8] the ether the hypothetical medium formerly believed to fill all space and to support the propagation of electromagnetic waves
[9] Greek myth the upper regions of the atmosphere; clear sky or heaven
[10] a rare word for air

Words related to Ether

firmament, cosmos, sky, paradise, celestial

Words nearby Ether

ethelstan, ethelwulf, ethene, ethenyl, ethephon, ether, ethereal, ethereal oil, etherealize, etherege, etherify

Origin of Ether

1350–1400; Middle English < Latin aethēr the upper air, pure air, ether < Greek aithḗr, akin to aíthein to glow, burn, Old English ād funeral pyre, Latin aestus heat

Words that may be confused with Ether

either, ether

Other words from Ether

e·ther·ic [ih-ther -ik, ih-theer -] /ɪˈθɛr ɪk, ɪˈθɪər-/ , adjective
su·per·e·ther , noun

Word origin for Ether

C17: from Latin aether, from Greek aithēr, from aithein to burn

Synonyms for Ether

cosmos, firmament, paradise, sky, celestial