#cannon.armor_plate  (medieval) a cylindrical piece of armor plate to protect the arm
  supertype:  #armor_plate__armorplate__armour_plate__armor_plating__armorplating__plate_armor__platearmor__plate_armour__platearmour  specially hardened steel plate used to protect fortifications or vehicles from enemy fire
  part of:  #body_armor
  subtype:  #rerebrace__upper_cannon__uppercannon  cannon that provides plate armor for the upper arm
  subtype:  #vambrace__lower_cannon__lowercannon  cannon of plate armor protecting the forearm

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