Meaning of “CS gas” in the English Dictionary

british dictionary

"CS gas" in British English

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CS gasnoun [ U ]

uk /ˌsiː.es ˈɡæs/ us /ˌsiː.es ˈɡæs/

a gas that causes painful breathing and tears, used by the army or police to control a person or crowd in a violent situation

(Definition of “CS gas” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)