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percussion cap

a small metallic cap or cup containing fulminating powder, formerly exploded by percussion to fire the charge of small arms.
Origin of percussion cap
1815-25 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for percussion cap
  • During the percussion cap era, breechloaders proliferated.
  • Other than the dimensions, the primer was similar to the familiar percussion cap of the muzzleloading era.
  • The final improvement in the fabrication of muzzle loading rifles was the introduction of the percussion cap.
  • Double-barreled muzzleloaders and percussion cap revolvers are not legal during the special muzzleloading season.
  • Muzzleloaders will be considered unloaded if the percussion cap is not seated in the chamber.
British Dictionary definitions for percussion cap

percussion cap

a detonator consisting of a paper or thin metal cap containing material that explodes when struck and formerly used in certain firearms
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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