waterspout
/ˈwɔː.tə spaʊt/noun
Elementary
1
A whirlwind that forms over water, not associated with a mesocyclone of a thunderstorm (contrary to a true tornado).
2
A true tornado that passes over a body of water.
3
A plume of water rising from the surface of a body of water as the result of an explosion or impact.
4
A channel through which water is discharged, especially from the gutters of a roof.