underlug

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noun

One of the locking lugs on a break-action firearm that extend from the bottom of the barrels under the chamber(s) and connect into the receiver bottom.

Scrabble 10
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Meanings

noununderlug (plural underlugs)

plural underlugs

  1. engineeringOne of the locking lugs on a break-action firearm that extend from the bottom of the barrels under the chamber(s) and connect into the receiver bottom.
  2. engineeringThe metal shroud underneath the barrel of a revolver that surrounds and protects the extractor rod.

Origin

From under- + lug.

Full word history & related roots →
Cite this entry
APA

underlug. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/underlug

MLA

“underlug.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/underlug. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “underlug,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/underlug.

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