backbore

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noun

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.”

Scrabble 18
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Meanings

nounbackbore (plural backbores)

plural backbores

  1. 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.

verbbackbore (third-person singular simple present backbores, present participle backboring, simple past and past participle backbored)

present singular third person backbores · participle present backboring · participle past backbored · past backbored

  1. transitiveengineeringTo modify (a weapon's barrel) so as to increase the bore diameter.
  2. engineeringTo bore from the backside of a workpiece by using a boring tool that passes through one or more through holes, deploys a cutting edge (or receives it by manual insertion from an operator), bores a feature on the far side, retracts the cutting edge (or has it removed), and then retreats back through the hole (toward the tool's origin).

Origin

From back + bore.

Full word history & related roots →

Rhymes & wordplay

Anagrams

Baerbock
Cite this entry
APA

backbore. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/backbore

MLA

“backbore.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/backbore. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “backbore,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/backbore.

Source: backbore on Wiktionary, CC BY-SA 4.0.