| 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] |
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