breechblock

or breech-block

[ breech-blok ]

nounOrdnance.
  1. a movable piece of metal for closing the breech in certain firearms.

Origin of breechblock

1
First recorded in 1880–85; breech + block

Words Nearby breechblock

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How to use breechblock in a sentence

British Dictionary definitions for breechblock

breechblock

/ (ˈbriːtʃˌblɒk) /


noun
  1. a metal block in breech-loading firearms that is withdrawn to insert the cartridge and replaced to close the breech before firing

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