gusset: Meaning and Definition of

gus•set

1. a small, triangular piece of material inserted into a shirt, shoe, etc., to improve the fit or for reinforcement. Cf. godet (def. 1), (def. 1).
2. a plate for uniting structural members at a joint, as in a steel frame or truss.
1. Also calledvoider.an area of mail backed with cloth, for defending the armpits or areas at joints.
2. a small piece of plate armor at the armhole of a cuirass; pallet.