- carbonyl choride
- phosgene phos"gene (f[o^]s"j[=e]n or f[o^]z"j[=e]n), n. (Chem.) A reactive chemical substance ({COCl2}), also called {carbonyl choride}, used in synthesis of numerous substances. In the First Worlds War it was also used as a poisonous gas in combat. [PJC]
The Collaborative International Dictionary of English. 2000.