Definition of pin-fire in English:

pin-fire

adjective

historical
  • Designating a form of cartridge for a breech-loading gun, fired by a pin thrust by the hammer of the lock into the fulminate.

noun

historical
  • A pin-fire cartridge or gun.

Origin

Mid 19th century; earliest use found in Scientific American. From pin + fire.

Pronunciation

pin-fire

/ˈpɪnfʌɪə/