音标：['ku:mәrin] ；

n. 香豆素, 氧杂萘邻酮
[化] 香豆素1,2-氧萘酮

n. The concrete essence of the tonka bean, the fruit of
Dipterix (formerly Coumarouna) odorata and consisting essentially of
coumarin proper, which is a white crystalline substance, C9H6O2, of
vanilla-like odor, regarded as an anhydride of coumaric acid, and used
in flavoring. Coumarin in also made artificially.

词型变化：名词复数形式 : coumarins

词性分布：

名词100%

coumarin的用法和样例：

例句

用作名词(n.)

Too much coumarin in the diet can cause liver damage.However, she agrees that there's no reason to worry about sprinkling cinnamon on a child's oatmeal.虽然食物中如果有太多的香豆素会导致肝脏受损，但是，她认为也不需要担心小孩子燕麦粥上洒的那么一点点肉桂。

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