ether(redirected from Ethers, cyclic)
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1. Any of a class of organic compounds in which two hydrocarbon groups are linked by an oxygen atom.
2. A volatile, highly flammable liquid, C4H10O, derived from distilling ethyl alcohol with sulfuric acid, used as a reagent and solvent, and formerly used as an anesthetic. Also called diethyl ether, ethyl ether.
3. The regions of space beyond the earth's atmosphere; the heavens.
4. The element believed in ancient and medieval civilizations to fill all space above the sphere of the moon and to compose the stars and planets.
5. Physics An all-pervading, infinitely elastic, massless medium formerly postulated as the medium of propagation of electromagnetic waves.
[Middle English, upper air, from Latin aethēr, from Greek aithēr.]
e·ther′ic (ĭ-thĕr′ĭk, ĭ-thîr′-) adj.
nAlso (for senses 3–5): aether
1. (Elements & Compounds) Also called: diethyl ether, ethyl ether or 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: C2H5OC2H5
2. (Elements & Compounds) any of a class of organic compounds with the general formula ROR′ where R and R′ are alkyl groups, as in diethyl ether C2H5OC2H5
3. (General Physics) the ether the hypothetical medium formerly believed to fill all space and to support the propagation of electromagnetic waves
4. (Classical Myth & Legend) Greek myth the upper regions of the atmosphere; clear sky or heaven
5. a rare word for air
[C17: from Latin aether, from Greek aithēr, from aithein to burn]
a. Also called ethyl ether. a colorless, highly volatile, flammable liquid, C4H10O, having an aromatic odor and sweet burning taste, used as a solvent and formerly as an inhalant anesthetic.
b. (formerly) one of a class of compounds in which two organic groups are attached directly to an oxygen atom, having the general formula ROR.
2. upper regions of space; the clear sky; the heavens.
3. the medium supposed by the ancients to fill the upper regions of space.
4. a substance formerly supposed to occupy all space, accounting for the propagation of electromagnetic radiation through space.
[1350–1400; < Latin aethēr the upper air, ether < Greek aithḗr, akin to aíthein to glow, burn]
e•ther•ic (ɪˈθɛr ɪk, ɪˈθɪər-) adj.
1. An organic compound in which two hydrocarbon groups are linked by an oxygen atom.
2. A colorless, flammable liquid, C4H10O. It is used as a solvent and was formerly used as an anesthetic.
3. A hypothetical medium formerly believed to permeate all space and to be the medium through which light and other electromagnetic radiation move. The existence of ether was disproved by the American physicists Albert Michelson and Edward Morley in 1887.
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|Noun||1.||ether - the fifth and highest element after air and earth and fire and water; was believed to be the substance composing all heavenly bodies|
element - one of four substances thought in ancient and medieval cosmology to constitute the physical universe; "the alchemists believed that there were four elements"
|2.||ether - any of a class of organic compounds that have two hydrocarbon groups linked by an oxygen atom|
organic compound - any compound of carbon and another element or a radical
|3.||ether - a medium that was once supposed to fill all space and to support the propagation of electromagnetic waves|
medium - an intervening substance through which signals can travel as a means for communication
|4.||ether - a colorless volatile highly inflammable liquid formerly used as an inhalation anesthetic|
enflurane, Ethrane - a nonflammable liquid (trade name Ethrane) used as an inhalation general anesthetic
ether[ˈiːθəʳ] N (Chem) → éter m
ether[ˈiːθər] n → éther m
n (Chem, poet) → Äther m
ether[ˈiːθəʳ] n → etere m
a colourless liquid used to dissolve fats etc, and, medically, as an anaesthetic. eter الأثير етер éter éter der Äther æter αιθέραςéter eeter اتر eetteri étherאתר रंग रहित द्रव eter éter eter eter etere エーテル 에테르 eteris ēteris cecair eter etheretereter اثير، دفضا لوړې سيمى، هغه فرضى دغاز عنصر چه دا سيمى ډكوى: ايتر (يو سپك او را خيستو نكى ما يع چه په جراحى كى دناروغ دبى حسه كولو دپاره استعماليږى éter eter эфир éter eter etar eter สารอีเธอร์ eter, lokman ruhu 乙醚, 以太 ефір ایک بے رنگ آتشگیر نامیاتی سیال جو بے ہوشی یا بے حسی پیدا کرنے یا محلل کے طور پر استعمال ہوتا ہے ête 乙醚，以太
n. éter, fluido químico cuyo vapor es usado en anestesia general.