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ethanol 音标拼音: ['ɛθən ,ɔl] n. 乙醇,酒精 乙醇,酒精 ethanol n 1: the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean- burning additive to gasoline [ synonym: { ethyl alcohol}, { ethanol}, { fermentation alcohol}, { grain alcohol}] Alcohol \ Al" co* hol\ ([ a^] l" k[- o]* h[ o^] l), n. [ Cf. F. alcool, formerly written alcohol, Sp. alcohol alcohol, antimony, galena, OSp. alcofol; all fr. Ar. al- kohl a powder of antimony or galena, to paint the eyebrows with. The name was afterwards applied, on account of the fineness of this powder, to highly rectified spirits, a signification unknown in Arabia. The Sp. word has both meanings. Cf. { Alquifou}.] 1. An impalpable powder. [ Obs.] [ 1913 Webster] 2. The fluid essence or pure spirit obtained by distillation. [ Obs.] -- Boyle. [ 1913 Webster] 3. Pure spirit of wine; pure or highly rectified spirit ( called also { ethyl alcohol} or { ethanol}, { CH3. CH2. OH}); the spirituous or intoxicating element of fermented or distilled liquors, or more loosely a liquid containing it in considerable quantity. It is extracted by simple distillation from various vegetable juices and infusions of a saccharine nature, which have undergone vinous fermentation. Note: [ The ferementation is usually carried out by addition of brewer' s yeast, { Saccharomyces cerevisiae} to an aqueous solution containing carbohydrates.] [ 1913 Webster PJC] Note: As used in the U. S. " Pharmacop[ oe] ia," alcohol contains 91 per cent by weight of ethyl alcohol and 9 per cent of water; and diluted alcohol ( proof spirit) contains 45. 5 per cent by weight of ethyl alcohol and 54. 5 per cent of water. [ 1913 Webster] 4. ( Organic Chem.) A class of compounds analogous to vinic alcohol in constitution. Chemically speaking, they are hydroxides of certain organic radicals; as, the radical ethyl forms common or { ethyl alcohol} ({ C2H5. OH}); methyl forms { methyl alcohol} ({ CH3. OH}) or { wood alcohol}; amyl forms { amyl alcohol} ({ C5H11. OH}) or { fusel oil}, etc. [ 1913 Webster]
ethanol \ eth" an* ol\ ([ e^] th"[ a^] n*[ add] l), n. ( Chem.) The organic compound { C2H5. OH}, the common { alcohol} which is the intoxicating agent in beer, wine, and other fermented and distilled liquors; called also { ethyl alcohol}. It is used pure or denatured as a solvent or in medicines and colognes and cleaning solutions, or mixed in gasoline as a fuel for automobiles, and as a rocket fuel ( as in the V- 2 rocket). Syn: ethyl alcohol, fermentation alcohol, grain alcohol. [ WordNet 1. 5]
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