| 单词 | coumarin |
| 释义 | coumarin /kooh"meuh rin/, n. a fragrant crystalline substance, C9H6O2, obtained from the tonka bean, sweet clover, and certain other plants or prepared synthetically, used chiefly in soaps and perfumery. Also, cumarin. [1820-30; < F coumarine, equiv. to coumar(ou) tonka-bean tree ( < Sp cumarú < Pg < Tupi cumaru) + -ine -IN2] |
| 随便看 |
英语词典包含168451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。