orthochlorobenzalmalononitrile

English

Noun

orthochlorobenzalmalononitrile (uncountable)

1. (chemistry) The active ingredient in most tear gas, C₁₀H₅ClN₂, also called CS gas
   • 1967, Michigan Compiled Laws Annotated, page 200:

     If a person uses a self-defense spray device during the commission of a crime to eject, release, or emit orthochlorobenzalmalononitrile or oleoresin capsicum or threatens to use a self-defense spray device […]