Watershed

Definition of Watershed

Wa´ter`shed`

n.	1.
	1.	The whole region or extent of country which contributes to the supply of a river or lake.
	2.	The line of division between two adjacent rivers or lakes with respect to the flow of water by natural channels into them; the natural boundary of a basin; - called also divide and water parting.
	3.	a point in time marking an important transition between two situations, or phases of an activity; a turning point.

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