An Encylopedia Britannica Company

gusset

1 ENTRIES FOUND:
gusset /ˈgʌsət/ noun
plural gussets
gusset
/ˈgʌsət/
noun
plural gussets
Britannica Dictionary definition of GUSSET
[count]
: a piece of cloth usually in the shape of a triangle that is sewn into something (such as the underneath part of a sleeve) to make it wider or stronger