porthole Hear it!

porthole definition

port·hole (pôrt′hōl′)

noun

  1. an opening in a ship's side, esp. a round one for admitting light and air, fitted with thick glass and, often, a hinged metal cover
  2. an opening to shoot through, in the wall of a fort; embrasure
  3. an opening shaped somewhat like this, as in a furnace door

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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