Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: porthole  'port,hówl
  1. A window in a ship or aeroplane
  2. An opening (in a wall, ship or armoured vehicle) for firing through
    - port, embrasure

Derived forms: portholes

Type of: opening, window

Part of: fuselage, ship

Encyclopedia: Porthole