drainage-area

drainage basin

noun
the area drained by a river and all its tributaries. Also called catchment area, drainage area. Compare watershed ( def 2 ).

Origin:
1880–85, Americanism

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World English Dictionary
drainage basin or drainage area
 
n
another name for catchment area
 
drainage area or drainage area
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
drainage basin   (drā'nĭj)  Pronunciation Key 
An area drained by a river system. A drainage basin includes all areas that gather precipitation water and direct it to a particular stream, stream system, lake, or other body of standing water.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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