drainage Hear it!

drainage definition

drain·age (drānij)

noun

  1. the act, process, or method of draining
  2. a system of drains; arrangement of pipes, etc. for carrying off waste matter
  3. that which is drained off
  4. a region or area drained, as by a river

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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