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catchment basin


from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A topographic region in which all water drains to a common outlet; a watershed.

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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