river basin
English Thesaurus
1. the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet (noun.location)
hyponym | : | detention basin, |
definition | : | a storage site (such as a small reservoir) that delays the flow of water downstream (noun.location) |
hyponym | : | retention basin, |
definition | : | a storage site similar to a detention basin but the water in storage is permanently obstructed from flowing downstream (noun.location) |
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