1. Noun. A drug used in chemotherapy, structurally similar to lomustine. ¹
¹ Source: wiktionary.com
Medical Definition of Semustine
1. 1-(2-chloroethyl)-3-(4-methylcyclohexyl)-1-nitrosourea. 4-methyl derivative of lomustine (ccnu). An antineoplastic agent which functions as an alkylating agent.
Pharmacological action: antineoplastic agent, alkylating.
Chemical name: Urea, N-(2-chloroethyl)-N'-(4-methylcyclohexyl)-N-nitroso-
(12 Dec 1998)