Look up ordnance in Wiktionary, the free dictionary.

Ordnance may refer to:

Military

• Ordnance, the design, testing, manufacture, arming, controlling, maintenance and disposal of weapons and munitions.
• Bureau of Ordnance, the U.S. Navy's organization responsible for the procurement, storage, and deployment of all naval ordnance
• Explosive Ordnance Disposal Badge, a military badge of the United States Armed Forces
• Naval Ordnance Laboratory, a former United States military research laboratory
• Ordnance Corps (United States Army), a combat service support branch of the United States Army
• Royal Army Ordnance Corps (RAOC), a former corps of the British Army
• Royal Ordnance, a British public corporation that manufactured explosives, ammunition, and small arms
• Royal Ordnance Factory, the collective name of the UK government's munitions factories in and after World War II
• United States Army Ordnance Museum, a museum at Aberdeen Proving Ground, in Aberdeen, Maryland
• Weapon
• Ammunition
• Ordnance disposal, the process by which hazardous devices are rendered safe
• Para-Ordnance, a firearms manufacturer in Toronto, Canada
• Unexploded ordnance, are explosive munitions that did not explode when they were used, and still pose a risk of detonation

Surveying

• Ordnance Datum, a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps
• Ordnance Survey, a British government organization that makes and sells maps
• Ordnance Survey Ireland, the mapping agency in the Republic of Ireland

Places

• Ordnance Island, Bermuda, an island, formerly a Royal Army Ordnance Corps depot, within the limits of St. George's town, Bermuda
• USN Submarine Base, Ordnance Island, Bermuda, a U.S. Navy base during the Second World War
• Ordnance, Oregon, a former community near the Umatilla Chemical Depot

Others

• Board of Ordnance, a British government body created in the 15th century

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