Etymology

bourrelet

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Today it means: An accurately machined portion around the diameter of a shell of a gun, which acts to increase accuracy of projectile fit to the barrel. Full definition →

French bourrelet
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The story

  1. French · borrowed frombourrelet
  2. French · borrowed frombourrelet
  3. English todaybourrelet

Borrowed from French bourrelet.

Etymology from Wiktionary, CC BY-SA 4.0.