downspout /ˈdaʊnˌspaʊt/ noun plural downspouts
plural downspouts
Learner's definition of DOWNSPOUT
[count] US
: a pipe that carries rainwater from the roof of a building to the ground(把雨水从屋顶排放到地面的)排水管 — called also drainpipe, (British) downpipe
— see picture at house