Bastion, Cut, is that which, instead of a point, has a re-entering angle.

Bastion, Deformed, is when the irregularity of the lines and angles puts the bastion out of shape; as, when it wants a demi-gorge, one side of the interior polygon being too short.

Bastion, Demi, is that which has only one face and one flank, cut off by the capital,—like the extremities of horn- and crown-works.

Bastion, Double, is that which is raised on the plane of another bastion.

Bastion, Flat, is a bastion built in the middle of the curtain, when it is too long to be defended by the bastions at its extremes.

Bastions, Hollow, are those surrounded only with a rampart and parapet, having the space within unoccupied where the ground is so low that no retrenchment can be made in the centre in the event of the rampart being taken.

Bastion, Regular, is that which has true proportion of faces, flanks, and gorges.

Bastions, Solid, are those which have the void space within them filled entirely, and raised of an equal height with the rampart.

Bastioned Fort. A fort having bastions.

Baston. A staff or cudgel formerly used in tournaments. In heraldry, a staff or cudgel generally borne as a mark of bastardy, and properly containing one-eighth in breadth of the bend-sinister.