英语词汇“ether”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

e•ther n. [uncountable]

Chemistry, Drugsa colorless, flammable liquid once used as an anesthetic in surgery.
the upper regions of space;
the clear sky.

e•ther n.

Also called diethyl ether, diethyl oxide, ethyl ether, ethyl oxide, sulfuric ether. [Chem., Pharm.]a colorless, highly volatile, flammable liquid, C₄H₁₀O, 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.
[Chem.](formerly) one of a class of compounds in which two organic groups are attached directly to an oxygen atom, having the general formula ROR.
the upper regions of space; the clear sky;
the heavens.
the medium supposed by the ancients to fill the upper regions of space.
[Physics.]a hypothetical substance supposed to occupy all space, postulated to account for the propagation of electromagnetic radiation through space. Cf. Michelson-Morley experiment.

Also, aether (for defs. 3–5).

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

e•ther•ic adj.

ether /ˈiːθə/ n

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
any of a class of organic compounds with the general formula ROR′ where R and R′ are alkyl groups, as in diethyl ether C₂H₅OC₂H₅
the ether ⇒ the hypothetical medium formerly believed to fill all space and to support the propagation of electromagnetic waves
the upper regions of the atmosphere; clear sky or heaven
a rare word for air

Also (for senses 3–5): aether Etymology: 17th Century: from Latin aether, from Greek aithēr, from aithein to burn

etheric /iːˈθɛrɪk/ adj

单词	ether
释义	WordReference Random House Learner's Dictionary of American English © 2024 e•ther /ˈiθɚ/USA pronunciation n. [uncountable] Chemistry, Drugsa colorless, flammable liquid once used as an anesthetic in surgery. the upper regions of space; the clear sky. WordReference Random House Unabridged Dictionary of American English © 2024 e•ther (ē′thər),USA pronunciation n. `Also called diethyl ether, diethyl oxide, ethyl ether, ethyl oxide, sulfuric ether.` [Chem., Pharm.]a colorless, highly volatile, flammable liquid, C₄H₁₀O, 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. [Chem.](formerly) one of a class of compounds in which two organic groups are attached directly to an oxygen atom, having the general formula ROR. the upper regions of space; the clear sky; the heavens. the medium supposed by the ancients to fill the upper regions of space. [Physics.]a hypothetical substance supposed to occupy all space, postulated to account for the propagation of electromagnetic radiation through space. Cf. Michelson-Morley experiment. `Also, aether` (for defs. 3–5). Greek aithé̄r, akin to aíthein to glow, burn, Old English ād funeral pyre, Latin aestus heat Latin aethēr the upper air, pure air, ether Middle English 1350–1400 e•ther•ic (i ther′ik, i thēr′-),USA pronunciation adj. Collins Concise English Dictionary © HarperCollins Publishers:: ether /ˈiːθə/ n 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 any of a class of organic compounds with the general formula ROR′ where R and R′ are alkyl groups, as in diethyl ether C₂H₅OC₂H₅ the ether ⇒ the hypothetical medium formerly believed to fill all space and to support the propagation of electromagnetic waves the upper regions of the atmosphere; clear sky or heaven a rare word for air Also (for senses 3–5): aether Etymology: 17th Century: from Latin aether, from Greek aithēr, from aithein to burn etheric /iːˈθɛrɪk/ adj
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