ether


ether
/ˈiθə / (say 'eethuh)

noun
1. Chemistry
a. a highly volatile and flammable colourless liquid, diethyl ether, (C2H5)2O, obtained by the action of sulphuric acid on alcohol, and used as a solvent and anaesthetic; sulphuric ether.
b. one of a class of organic compounds in which any two organic groups are attached directly to oxygen, having the general formula R2O, as ethyl ether (C2H5)2O.
2. Also, aether. the upper regions of space; the clear sky; the heavens.
3. Also, aether. the medium supposed by the ancients to fill the upper regions.
4. Also, aether. an all-pervading medium postulated for the transmission of light, heat, etc., by the older elastic solid theory.
5. (usually plural) certain undefined properties of wine which result in fine flavour and bouquet.
{Latin aether, from Greek aithēr upper air, sky}
etheric /iˈθɛrɪk/ (say ee'therik), adjective

Australian English dictionary. 2014.

Look at other dictionaries:

  • ÉTHER — La notion d’éther est aussi vieille que la physique, mais sa signification a considérablement varié, suivant en cela l’évolution des théories et les progrès de l’expérience. Oscillant entre l’idée de feu, de lumière et celle de représentation… …   Encyclopédie Universelle

  • Ether — E ther ([=e] th[ e]r), n. [L. aether, Gr. a iqh r, fr. a i qein to light up, kindle, burn, blaze; akin to Skr. idh, indh, and prob. to E. idle: cf. F. [ e]ther.] [Written also {[ae]ther}.] 1. (Physics) A medium of great elasticity and extreme… …   The Collaborative International Dictionary of English

  • Ether — Éther Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom …   Wikipédia en Français

  • Ether — [ e:tɐ]: vgl. ↑ Äther. * * * Ether 〈m. 3; unz.; Chem.; fachsprachl.〉 = Äther * * * E|ther [griech. aithe̅̓r = obere Luft, Himmelsluft; vgl. Äther (1)], der; s, ; veraltete S: Äther: 1) Gruppenbez. für org. Verb. der allg. Formel R1 O R2, wobei… …   Universal-Lexikon

  • ether — late 14c., upper regions of space, from O.Fr. ether and directly from L. aether the upper pure, bright air, from Gk. aither upper air; bright, purer air; the sky, from aithein to burn, shine, from PIE root *aidh to burn (see EDIFICE (Cf.… …   Etymology dictionary

  • ether — ► NOUN 1) (also diethyl ether) a volatile, highly flammable liquid used as an anaesthetic and as a solvent. 2) Chemistry any organic compound with an oxygen atom linking two alkyl groups. 3) (also aether) chiefly literary the clear sky; the upper …   English terms dictionary

  • ether — [ē′thər] n. [ME < L aether < Gr aithēr < aithein, to kindle, burn < IE base * aidh > L aestas, summer, OE ætan, to burn] 1. a substance hypothesized by the ancients as filling all space beyond the sphere of the moon, and making up… …   English World dictionary

  • ETHER — civitas in tribu Iudae. Iosuae c. 15. v. 42. Lat. oratio, sive deprecatio …   Hofmann J. Lexicon universale

  • Ether — vgl. ↑Äther …   Das große Fremdwörterbuch

  • ether — atmosphere, *air, ozone …   New Dictionary of Synonyms

  • Ether — vgl. 2Äther …   Die deutsche Rechtschreibung