backbore
English edit
Etymology edit
Noun edit
backbore (plural backbores)
- The section between the throat and shank of the mouthpiece of a brass instrument.
- More conical backbores give a richer tone, while more cylindrical ones give a brighter, more projected tone.
Verb edit
backbore (third-person singular simple present backbores, present participle backboring, simple past and past participle backbored)
- (firearms, transitive) To modify (a weapon's barrel) so as to increase the bore diameter.