ure·thane /ˈjʊrəˌθen/
  氨基甲酸乙酯; 烏拉坦
  ure·thane /-ˌθæn/ 名詞
  烏拉坦,尿烷,氨基甲酸乙酯
  U·reth·ane n.
  1. Org. Chem. A white crystalline substance, NH2.CO.OC2H5, produced by the action of ammonia on ethyl carbonate or by heating urea nitrate and ethyl alcohol. It is used as a hypnotic, antipyretic, and antispasmodic. Hence, any ester of carbamic acid.
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  urethane
       n : an ester of carbamic acid