Category:Watershed

Wa"ter*shed`, n. Etym: [cf. G. wasserscheide; wasser water + scheide A place where two things separate, fr. scheiden to separate.]

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.