Gun port

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(Naut.) an opening in a ship through which a cannon's muzzle is run out for firing.

See also: Gun

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
This resulted in two of the bomber's fuel tanks being punctured, both its radio and rear turret gun port being disabled, the starboard inner engine being critically damaged and the internal intercom lines cut.
If you don't use the gun port and seeker covers, the IR glass, the gas port and automate connector can be damaged.
My chum Kev, a former Ark Royal sailor, says this is a naval term that goes back to the days of Nelson and beyond, when cannons were loaded by hand and hauled forward into a gun port on ropes.
Tertiary weapon: Browning machine guns (.30-caliber) mounted coaxially in the turret and in the bow machine gun port and a Browning M2 antiaircraft machine gun (.50-caliber)
The Georgian windows allow fantastic sea views, and the lounge has a gun port window.
The vehicle is fitted with MIL-spec certified ballistic steel and .50 calibre-rated bullet resistant glass, one-piece blast-resistant floor, gun ports, escape hatches equipped with a mounted turret system as well as mission specific equipment and modifications.
"The highest priority is to locate the four gun ports and the air scoops to obtain their measurements with respect to each other and the wing roots," McManus explained, as she geared up one more time.