Urethane
Urethane , noun
[French uréthane. See Urea; Ether.]
1.
(Org. Chemistry) 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.
2.
same as polyurethane.