roundel

noun

1. English form of rondeau having three triplets with a refrain after the first and third

   Less specific

   • rondeau, rondel

2. round piece of armor plate that protects the armpit

   Less specific

   • armor plate, armour plate, armor plating, plate armor, plate armour

   Part of

   • body armor, body armour, suit of armor, suit of armour, coat of mail, cataphract

3. (heraldry) a charge in the shape of a circle; “a hollow roundel”

   Synonyms

   • annulet

   Less specific

   • charge, bearing, heraldic bearing, armorial bearing