water hammer Hear it!

water hammer definition

water hammer

  1. the hammering sound caused in a pipe containing water when live steam is passed through it
  2. the thump of water in a pipe, caused by an air lock, when a faucet is suddenly closed

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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