outfall

verb

1. (obsolete, transitive)To burst forth, as upon an enemy; make a sally.

noun

1. (obsolete)A sudden eruption of troops from a fortified place; sally.
2. (dialectal)A quarrel; a falling out.
3. The point or place of discharge of a river, drain, culvert, sewer, etc.; mouth; embouchure.

   “West of Keswick a short descent at 1 in 122 brings the train down to the low-lying and marshy ground between Derwentwater and Bassenthwaite Lake and to the crossing of the Derwent - the outfall from Derwentwater, [...].”

   “The rules focus primarily on two crucial operating features: seawater intakes and outfalls.”