ಅರ್ಥ : The entire geographical area drained by a river and its tributaries. An area characterized by all runoff being conveyed to the same outlet.
ಉದಾಹರಣೆ :
Flood control in the Missouri basin.
ಸಮಾನಾರ್ಥಕ : basin, catchment area, catchment basin, drainage area, river basin, watershed