gusset
/ˈɡʌsɪt/
noun
- A piece of material sewn into a garment to strengthen or enlarge a part, such as the underarm or crotch.
- She reinforced the bag's corners with a fabric gusset.
- The tailor added a gusset under the arms for more movement.
- These pants have a gusset in the seat for extra durability.
- A metal plate or bracket used to strengthen a joint in a structure, such as a bridge or building frame.
- Each corner of the frame was reinforced with a triangular gusset.
- Engineers inspected the gusset connections on the bridge.
- The steel gusset plates were bolted to the beams for stability.