Definition of breechblock

The word breechblock uses 11 letters:bbcceehklor.

BREECHBLOCK is playable in:

Words With Friends30
Scrabble US26
Scrabble UK26

n. - The movable piece which closes the breech of a breech-loading firearm, and resists the backward force of the discharge. It is withdrawn for the insertion of a cartridge, and closed again before the gun is fired. 2