gun port

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gun hole, gun loop, gun port, gun slot

A type of embrasure in a structure designed to provide protection in case of enemy attack; the opening enables a defender to fire through a wall, over a wide angle.
References in periodicals archive ?
The second bedroom, with an attractive gun port window, measures 12ft 2in by 9ft 2in and also boasts sea views.
The units are supplied with gun ports and ballistic-resistant windows on all sides.
The building was then said to have featured gun ports and possibly even a drawbridge.
The armoured vehicle has 10 gun ports and escape hatches and can carry up to eight equipped troops.
But the Mary Rose sank after being overturned by a gust of wind, with water entering its open gun ports.
Many of the original features have been kept intact and incorporated into the new design, with gun ports transformed into bedroom windows and gunpowder rooms enlisted as cosy snugs.
I entered through a doorway cut into the Middle Gun Deck and instantly you feel in stride with history - the oily smell of timber garnished by that of rope, the low light of lanterns and sunlight through the gun ports.