What is "chloropicrin"

n. (context organic compound English) The chlorinated derivative of nitromethane CCl₃NO₂ that is used as a pesticide and tear gas

n. a heavy colorless insoluble liquid compound that causes tears and vomiting; used as a pesticide and as tear gas [syn: nitrochloroform]

Chloropicrin, also known as PS and nitrochloroform, is a chemical compound currently used as a broad-spectrum antimicrobial, fungicide, herbicide, insecticide, and nematicide. Its chemical structural formula is ClCNO.