water cannon
noun
a truck-mounted hose or pipe that shoots a jet of water through a nozzle at extremely high pressure, used especially in dispersing rioters or demonstrators.
Origin of water cannon
First recorded in 1965–70
Words nearby water cannon
water boy,
water brash,
water buffalo,
water bug,
water butt,
water cannon,
water carrier,
water chestnut,
water chinquapin,
water clock,
water closet
British Dictionary definitions for water cannon
water cannon
noun
an apparatus for pumping water through a nozzle at high pressure, used in quelling riots