or  ure*than  n 1  :  a crystalline compound C₃H₇NO₂ that is the ethyl ester of carbamic acid and is used esp. as a solvent and medicinally as an antineoplastic agent - called also ethyl carbamate   2  :  an ester of carbamic acid other than the ethyl ester .
 
 
 
Published under license with Merriam-Webster, Incorporated.  © 1997-2024.