Meaning of porthole

port•hole

Pronunciation: (pôrt'hōl", pōrt'-), [key]
— n.
  1. a round, windowlike opening with a hinged, watertight glass cover in the side of a vessel for admitting air and light. Cf. (def. 1).
  2. an opening in a wall, door, etc., as one through which to shoot.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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