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drainage area

DEFINITIONS OF: drainage area

1

n the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet

Synonyms:
basin, catchment area, catchment basin, drainage basin, river basin, watershed
Types:
detention basin
a storage site (such as a small reservoir) that delays the flow of water downstream
retention basin
a storage site similar to a detention basin but the water in storage is permanently obstructed from flowing downstream
Type of:
geographic area, geographic region, geographical area, geographical region
a demarcated area of the Earth
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