Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

breechblock

play
noun breech·block \ˈbrēch-ˌbläk\

Definition of breechblock

  1. :  the block in breech-loading firearms that closes the rear of the barrel against the force of the charge and prevents gases from escaping




Seen and Heard

What made you want to look up breechblock? Please tell us where you read or heard it (including the quote, if possible).