¹ Source: wiktionary.com
Definition of Urethan
1. urethane [n -S] - See also: urethane
Medical Definition of Urethan
1. Urethane NH2COOC2H5;has antimitotic activity; formerly used medically as a hypnotic, but now more often used as an anaesthetic for laboratory animals. Synonym: ethyl carbamate. (05 Mar 2000)