Chem. Also -an. [a. F. uréthane: see UR-EA and ETHANE.] Ethyl carbamate; valued as an anæsthetic.
1838. T. Thomson, Chem. Org. Bodies, 600. The specific gravity of the vapour of urethan.
1844. Fownes, Man. Chem., 386. Urethane is a white, solid, crystallizable body, fusible below 212°.
1885. Lancet, 19 Dec., 1167/2. He had slept comfortably by the aid of urethan.
