| 单词 | cycloolefin |
| 释义 | cycloolefin in British English (ˌsaɪkləʊˈəʊlɪˌfiːn) noun another name for cycloalkane cycloalkane in British English (ˌsaɪkləʊˈælkeɪn) noun any saturated hydrocarbon similar to an alkane but having a cyclic molecular structure and the general formula CnH2n Also called: cycloparaffin cycloolefin in American English (ˌsaiklouˈouləfɪn, ˌsɪklou-) noun Chemistry any of the homologous series of unsaturated, alicyclic hydrocarbons, as cyclooctatetraene and cyclopentadiene, containing one double bond in the ring and having the general formula C11H2n−2 Word origin [1920–25; cyclo- + olefin]This word is first recorded in the period 1920–25. Other words that entered Englishat around the same time include: Unknown Soldier, follow-up, montage, superpower, zippercyclo- is a combining form meaning “cycle,” used in the formation of compound words. Otherwords that use the affix cyclo- include: cyclometer, cyclophosphamide, cyclostyle, cyclotomy, cyclotron |
| 随便看 |
英语词典包含298861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。