flange

Meanings

1. 1
   noun

   a projecting rim, rib, or collar on a pipe, wheel, beam, or other component, used for strength, guidance, or attachment

   The mechanic bolted the pipe's flange securely to the pump housing.

From dialectal English flange or flanch, meaning "to project" or "a projection," probably through French flanche from an older word for a flank or side. Its mechanical sense developed for a projecting edge that strengthens a part or lets it join another part.

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