单词 | mesoparaffin |
释义 | † mesoparaffinn. Chemistry. Obsolete. Any of a class of alkanes containing four unbranched alkyl groups attached to a central \\\\\\CH·CH group. Cf. isoparaffin n. at iso- comb. form 2b, neo-paraffin n. at neo- comb. form 1d(a). ΚΠ 1876 W. Odling in London, Edinb., & Dublin Philos. Mag. 5th Ser. 1 206 Mesoparaffins. 1877 H. Watts Fownes's Man. Chem. (ed. 12) II. 43 Mesoparaffins, in which two methenyl groups, having their carbon-atoms linked together by one combining unit, are each associated with two monatomic radicles, CnH2n+1·. This entry has been updated (OED Third Edition, September 2001; most recently modified version published online June 2018). < |
随便看 |
英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。