Meaning of DRAINAGE BASIN

Pronunciation:			'dreynij'beysun
WordNet Dictionary
	Definition:		[n]  the geographical area draining into a river or reservoir
	Synonyms:		catchment area, catchment basin, drainage area
	See Also:		geographic area, geographic region, geographical area, geographical region
Biology Dictionary
	Definition:		A large surface area whose waters are drained off into a principal river system.