A washbowl; a sink.
The region enclosed by such a divide and draining into a river, river system, or other body of water.
An area drained by a river system.
The geographical area served by a particular government agency, health facility, etc.
the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
Find another word for river-basin. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for river-basin, like: basin, watershed, drainage-basin, catchment area, catchment-basin and drainage area.