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单词 urethan
释义

WordReference Random House Unabridged Dictionary of American English © 2024
u•re•thane  (yŏŏr′ə thān′),USA pronunciation n. [Chem.]
  1. Chemistryany derivative of carbamic acid having the formula CH2NO2R.
  2. ChemistryAlso called ethyl carbamate, ethyl urethane. a white, crystalline, water-soluble powder, C3H7NO2: used chiefly as a solvent, in organic synthesis, as a fungicide and pesticide, and formerly in cancer treatment.
Also, u•re•than (yŏŏr′ə than′).USA pronunciation 
  • French uréthane (1833); see urea, ethane

Collins Concise English Dictionary © HarperCollins Publishers::
urethane /ˈjʊərɪˌθeɪn/, urethan /ˈjʊərɪˌθæn/ n
  1. short for polyurethane
Etymology: 19th Century: from uro-1 + ethyl + -ane
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更新时间：2025/2/23 15:41:00