noun (n)

• a cluster of small projectiles fired together from a cannon to produce a hail of shot(noun.artifact)

  Synonym:
  grape
  

  source: wordnet30
• A cluster, usually nine in number, of small iron balls, put together by means of cast-iron circular plates at top and bottom, with two rings, and a central connecting rod, in order to be used as a charge for a cannon. Formerly grapeshot were inclosed in canvas bags.(noun)

  source: webster1913