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percussion cap

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noun
a small metallic cap or cup containing fulminating powder, formerly exploded by percussion to fire the charge of small arms.
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Origin of percussion cap

First recorded in 1815–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use percussion cap in a sentence

British Dictionary definitions for percussion cap

percussion cap

noun
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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