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

单词	undeca-
释义	undeca-\|ʌnˈdɛkə\| before a vowel undec-, comb. form of L. undecim eleven, as in undecagon; cf. hendeca-. In Chem. and Biochem. used to form the names of molecules that contain eleven carbon atoms or consist of eleven of the second element, as unˈdecane, any of a series of isomeric hydrocarbons C₁₁H₂₄, esp. the liquid unbranched member CH₃(CH₂)₉CH₃; ˌundecaˈpeptide, any polypeptide composed of eleven amino-acids; ˌundecyˈlenic acid, a yellow, water-insoluble carboxylic acid, CH₂: CH(CH₂)₈COOH, which is used as an antifungal agent. 1899Jrnl. Chem. Soc. LXXVI. i. 816 The same substances were also detected in neutral creosote from paraffin oil; in this, undecane was found.1971E. O. Wilson Insect Societies* xii. 237/1 Undecane and the mandibular gland substances..evoke the alarm response at concentrations of 10⁹–10¹² molecules per cubic centimeter. 1960Jrnl. Biol. Chem. CCXXXV. 3645/2 Imidazole-heme undecapeptide exhibits a more complex behavior.1979Nature 8 Feb. 480/2 Several lines of evidence suggest that the undecapeptide, substance P, is involved in synaptic transmission in various areas of the central nervous system. 1879Jrnl. Chem. Soc. XXXVI. 306 Undecylic acid, C₁₁H₂₂O₂, prepared by heating undecylenic acid with red phosphorus and hydriodic acid.., is a colourless transparent substance.1952S. Spender Learning Laughter xiii. 179 Castor oil plants can also be broken down into eneanthol and undecylenic acid.1979Jrnl. Pharm. Sci. LXVIII. 384/1 The antifungal activity of products containing undecylenic acid and its salts was demonstrated some time ago.
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