1. The entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
   - river basin, basin, watershed, drainage basin, catchment basin, drainage area

Derived forms: catchment areas

Type of: geographic area, geographic region, geographical area, geographical region

Encyclopedia: Catchment area

• unsubstantial
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• unsubtle
• unsuccessful
• unsuccessful person
• unsuccessfully
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• unsuitability
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• unsung
• unsupervised
• unsupportable
• unsupported
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• unsure
• unsurmountable
• unsurpassable