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doc Definition of urethane
    English to English
    noun
  • an ester of carbamic acid
  • source: WordNet 3.0
  • A white crystalline substance, NH2.CO.OC2H5, produced by the action of ammonia on ethyl carbonate. It is used somewhat in medicine as a hypnotic. By extension, any one of the series of related substances of which urethane proper is the type.
  • source: Webster 1913
  • A white crystalline substance, NH2.COOC2H5, 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.
  • source: Webster 1913
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