watershed
Nouns
- (n) a ridge of land that separates two adjacent river systems water parting, divide,
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(n) the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
- flood control in the Missouri basin
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(n) an event marking a unique or important historical change of course or one on which important developments depend
- the agreement was a watershed in the history of both nations