from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The area drained by a river or body of water. Also called catchment basin.
- n. The surrounding area served by an institution, such as a hospital or school.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. 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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