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water cannon

noun

Simple Definition of water cannon

  • : a machine that shoots a large, powerful stream of water and that is used by police to control violent crowds

Source: Merriam-Webster's Learner's Dictionary

Full Definition of water cannon

  1. :  a large truck-mounted nozzle for directing a high-pressure stream of water (as at a crowd of rioters or demonstrators)

1964

First Known Use of water cannon

1964


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