Cut BASTION, is that whose point is cut off, and instead thereof has a re-entering angle, or an angle inwards, with two points outwards; and is used either when without such a contrivance the angle would be
too acute, or when water or some other impediment hinders the carrying on the bastion to its full extent.
Composed Bastion, is when two sides of the interior polygon are very unequal, which makes the gorges also unequal.
Deformed Bastion, is when the irregularity of the lines and angles makes the bastion out of shape; as when it wants one of its demigorges, one side of the interior polygon being too short.
Demi Bastion, is composed of one face only, and but one flank, and a demigorge.
Double Bastion, is that which is raised on the plane of another bastion.
Regular Bastion, is that which has its true proportion of faces, flanks, and gorges.
Bastion of France, a fortrefs on the coast of Barbary, belonging to the French *.