Gŭs'set, n.

n. [Fr. gousset, arm-pit, fob, gusset, diminutive of gousse, pod, husk; It. guscio. Cf. W. copsied, gore, gusset, from cwys, furrow.]

1. A small piece of cloth inserted in a garment, for the purpose of strengthening or enlarging some part.
2. (Mach.) A kind of bracket, or angular piece of iron, fastened in the angles of a structure to give strength or stiffness.
3. (Steam-boilers.) A piece of plate, at a corner, resembling the gusset of a garment; especially, the part joining the barrel and the fire-box of a locomotive boiler. [See Illust. of Boiler.]