Definition of firing pin in English:

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firing pin


A movable pin in a firearm that strikes the primer of a cartridge to set off the charge.
Example sentences
  • The edge of her ear was singed when the firing pin struck the primer and blew sparks out of the gap at the front of the cylinder.
  • If the primer were indented from the base of the canister, the firing pin may not be able to properly strike the primer.
  • The silver firing pin fell out and tumbled into the open desk drawer.

For editors and proofreaders

Syllabification: fir·ing pin

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