Crossbar /(-bär`)/

Cross·bar

Crossbar

n.
  1. A transverse bar or piece, as a bar across a door, or as the iron bar or stock which passes through the shank of an anchor to insure its turning fluke down.

Phrases & Compounds
Crossbar shot
a projectile which folds into a sphere for loading, but on leaving the gun expands to a cross with a quarter ball at the end of each arm; -- used in naval actions for cutting the enemy's rigging.