\Flange\ (fl[a^]nj), n. [Prov. E. flange to project,
flanch a projection. See {Flanch}, {Flank}.]
1. An external or internal rib, or rim, for strength, as the
   flange of an iron beam; or for a guide, as the flange of a
   car wheel (see {Car wheel}.); or for attachment to another
   object, as the flange on the end of a pipe, steam
   cylinder, etc. --Knight.
2. A plate or ring to form a rim at the end of a pipe when
   fastened to the pipe.
{Blind flange}, a plate for covering or closing the end of a
   pipe.
{Flange joint}, a joint, as that of pipes, where the
   connecting pieces have flanges by which the parts are
   bolted together. --Knight.
{Flange rail}, a rail with a flange on one side, to keep
   wheels, etc. from running off.
{Flange turning}, the process of forming a flange on a
   wrought iron plate by bending and hammering it when hot.

\Flange\, v. t. [imp. & p. p. {Flanged} (fl[a^]njd); p.
pr. & vb. n. {Flanging} (fl[a^]n"j[i^]ng).] (Mach.)
To make a flange on; to furnish with a flange.

\Flange\, v. i.
To be bent into a flange.