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The 'gusset of a leotard
A 'gusset in heraldry

Alternative forms[edit]


French gousset (armpit, fob).



gusset (plural gussets)

  1. A small piece of cloth inserted in a garment, for the purpose of strengthening some part or giving it a tapering enlargement.
  2. A small piece of mail, providing some protection where two plates of armor are joined, usually at the elbows, under the shoulders, and behind the knees.
  3. (machinery) A kind of bracket, or angular piece of iron, fastened in the angles of a structure to give strength or stiffness; especially, the part joining the barrel and the fire box of a locomotive boiler.
  4. (heraldry) An abatement or mark of dishonor in a coat of arms, resembling a gusset.
  5. (roofing) A large flat metal piece wider than the valley to help prevent build-up at the base of the valley, either from debris or ice dam formations.


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.

Derived terms[edit]


gusset (third-person singular simple present gussets, present participle gusseting, simple past and past participle gusseted)

  1. (transitive) To make with a gusset; to sew a gusset into.

Further reading[edit]

  • Wikipedia article on armor.