ether (redirected from Ethers, cyclic)

e·ther  (thr)

n.

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, C₂H₅OC₂H₅, derived from the distillation of ethyl alcohol with sulfuric acid and used as a reagent and solvent. It was 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.

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[Middle English, upper air, from Latin aethr, from Greek aithr.]

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e·theric (-thrk, -thîr-) adj.

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ether [ˈiːθə]

n

1. (Chemistry / Elements & Compounds) 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: C₂H₅OC₂H₅

2. (Chemistry / 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

(Physics / General Physics)

the ether the hypothetical medium formerly believed to fill all space and to support the propagation of electromagnetic waves

4. (Myth & Legend / Classical Myth & Legend) Greek myth the upper regions of the atmosphere; clear sky or heaven

5. a rare word for air Also (for senses 3-5) aether

[from Latin aether, from Greek aithēr, from aithein to burn]

etheric  [iːˈθɛrɪk] adj

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ether  (thr)

1. An organic compound in which two hydrocarbon groups are linked by an oxygen atom, having the general structure ROR, where R and R are the two hydrocarbon groups. At room temperature, ethers are pleasant-smelling liquids resembling alcohols but less dense and less soluble in water. Ethers are part of many naturally occurring organic compounds, such as starches and sugars, and are widely used in industry and in making pharmaceuticals.

2. A colorless, flammable liquid used as a solvent and formerly used as an anesthetic. Ether consists of two ethyl groups joined by an oxygen atom. Also called diethyl ether, ethyl ether. Chemical formula: C₄H₁₀O.

3. A hypothetical medium formerly believed to permeate all space, and through which light and other electromagnetic radiation were thought to move. The existence of ether was disproved by the American physicists Albert Michelson and Edward Morley in 1887.

Thesaurus

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 quintessence archaicism, archaism - the use of an archaic expression 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 aether 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 diethyl ether, divinyl ether, ethoxyethane, ethyl ether, vinyl ether enflurane, Ethrane - a nonflammable liquid (trade name Ethrane) used as an inhalation general anesthetic inhalation anaesthetic, inhalation anesthetic, inhalation general anaesthetic, inhalation general anesthetic - a gas that produces general anesthesia when inhaled

Translations

ether [ˈiːθəʳ] N (Chem) → éter m

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ether [ˈiːθə^r] n → éther m

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ether

n (Chem, poet) → Äther m

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ether [ˈiːθəʳ] n → etere m

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ether

n ether [ˈiːθə]

a colourless liquid used to dissolve fats etc, and, medically, as an anaesthetic. eter الأثير етер éter æter der Äther αιθέρας éter eeter اتر eetteri éther אֶתֶר रंग रहित द्रव eter éter eter eter etere エーテル 에테르 eteris ēteris cecair eter ether eter eter 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