noun
the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
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flood control in the Missouri basin
• Syn: ↑basin, ↑watershed, ↑drainage basin, ↑catchment area, ↑catchment basin, ↑drainage area
• Hypernyms: ↑geographical area, ↑geographic area, ↑geographical region, ↑geographic region
• Hyponyms: ↑detention basin, ↑retention basin
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noun : basin 3d
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Physical Geog.
the area of land drained by a river and its branches.
[1875-80]
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river basin noun
The whole region drained by a river with its affluents
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Main Entry: ↑river
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river basin,
the land that is drained by a river and its tributaries.
Useful english dictionary. 2012.