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firing pin

noun, Ordnance.
1.
a plunger in the firing mechanism of a firearm or cannon that strikes the cartridge primer, igniting the propelling charge.
Origin of firing pin
1870-1875
1870-75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2016.
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Examples from the Web for firing-pin
Historical Examples
  • This draws out the firing-pin and gets everything ready for the TNT to explode as soon as the firing-pin is struck.

    Inventions of the Great War A. Russell (Alexander Russell) Bond
  • He took it from her and pointed out where it had been dented by the firing-pin.

    Hidden Gold Wilder Anthony
  • To the horror of his comrades, he threw the firing-pin and put the live bomb in his pocket!

  • Such as are used in fixed ammunition and go off by the snap of the firing-pin.

    The Gunner's Examiner Harold E. Cloke
  • But her hurried explanation drove the firing-pin of intelligence.

    The Helpers Francis Lynde
  • At the nose of the torpedo is a firing-pin, with which the war-head is exploded.

    Inventions of the Great War A. Russell (Alexander Russell) Bond
  • Yes, sir; it shows just a portion of the primer, and a very small portion of the firing-pin impression.

    Warren Commission (3 of 26): Hearings Vol. III (of 15) The President's Commission on the Assassination of President Kennedy
  • When the projectile strikes, the plunger drives the firing-pin into the friction composition.

    The Gunner's Examiner Harold E. Cloke
  • It is indented—since it is missing from the firing pin, it will show as a flattened area in the firing-pin impression.

    Warren Commission (3 of 26): Hearings Vol. III (of 15) The President's Commission on the Assassination of President Kennedy
  • I again took two photographs, one of the breech-face or bolt-face marks, and one of the firing-pin marks.

    Warren Commission (3 of 26): Hearings Vol. III (of 15) The President's Commission on the Assassination of President Kennedy
British Dictionary definitions for firing-pin

firing pin

noun
1.
the part of the firing mechanism of a firearm that ignites the charge by striking the primer
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
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10
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