heelpieces

noun
  1. Plural of heelpiece; pieces of material attached to or forming the heel of a shoe, boot, or similar footwear.
  2. Usage: Usually used in plural form; Common in shoemaking and footwear manufacturing contexts
  3. In stringed instruments such as violins, the blocks of wood at the heel (lower end) of the neck.
  4. Usage: Musical instrument terminology; Technical/specialized usage

Examples