ordnance datum

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noun

mean sea level calculated from observation taken at Newlyn, Cornwall, and used as the official basis for height calculation on British mapsAbbreviation: OD

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Words nearby ordnance datum

ordinary wave, ordinate, ordination, ordn., ordnance, ordnance datum, Ordnance Survey, ordo, Ordóñez, ordonnance, Ordos

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

How to use ordnance datum in a sentence

“Lack of forward firing ordnance in a CAS supporting aircraft is a major handicap,” he added.
New U.S. Stealth Jet Can’t Fire Its Gun Until 2019|Dave Majumdar|December 31, 2014|DAILY BEAST
It could have closed off the school until another international organization with ordnance disposal skills secured the area.
Did the United Nations Give Rockets to Hamas?|Josh Rogin|July 20, 2014|DAILY BEAST
The American ordnance crew that had explored it estimated the mine contained 400,000 tons of explosives.
The Real Monuments Men: The Coronation Chamber of Hitler|Robert Edsel|February 6, 2014|DAILY BEAST
Beinart is upset with me for asking "what is the point of this datum?"
'Is It Good For The Jews?' Is Not The Question|Shany Mor|December 9, 2013|DAILY BEAST

Baker was an explosive ordnance disposal expert and had saved many lives by defusing many IEDs during two tours in Afghanistan.
Heroes of a Forgotten War|Michael Daly|May 27, 2013|DAILY BEAST
It contains complete arms for 40,000 men, and there is also a quantity of heavy ordnance.
A Woman's Journey Round the World|Ida Pfeiffer
Colonel Fox, member for Stroud, accepted the Chiltern hundreds in his favour, and became secretary to the ordnance.
The History of England in Three Volumes, Vol.III.|E. Farr and E. H. Nolan
The shaded rectangles represent the distribution of shear due to the load at C, while no may be termed the datum line of shear.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3|Various
During the next four days the enemy replied by a terrific bombardment from their heavy ordnance and gunboats.
The Political History of England - Vol. X.|William Hunt
Richmond again became master of the ordnance and a little later re-entered the cabinet.
The Political History of England - Vol. X.|William Hunt