noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The metal block that closes the breech of a breech-loading gun after insertion of the cartridge.
2. 2
   a metal block in breech-loading firearms that is withdrawn to insert a cartridge and replaced to close the breech before firing wordnet

Synonyms

All synonyms

breech closer

Etymology

From breech + block.

Related phrases

breech loading

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.