1. (n.) 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.

2. (n.) A plate or ring to form a rim at the end of a pipe when fastened to the pipe.

3. (v. t.) To make a flange on; to furnish with a flange.

4. (v. i.) To be bent into a flange.

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