Breechblock Definition

brēchblŏk
noun
The block in a breech-loading gun which when closed receives the force of the combustion of the charge.
Webster's New World
The metal part that closes the breech end of the barrel of a breechloading gun and that is removed to insert a cartridge and replaced before firing.
American Heritage
Synonyms:
  • breech closer

Other Word Forms of Breechblock

Noun

Singular:
breechblock
Plural:
breechblocks

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breechblock