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A small flat bastion, raised in the middle of an overlong curtain.

d at. -- Oblique flank (Fort.), that part of the curtain whence the fire of the opposite bastion may be discovered. Wilhelm. -- Oblique leaf. (Bot.) (a) A leaf twisted or inclined from the normal position. (b) A leaf having one half different from the other. -- Oblique line (Geom.), a line that, meeting or tending t…

A semicircular projection made at the shoulder of a bastion for the purpose of covering the retired flank, -- found in old fortresses.

A kind of retrenchment, as in the body of a bastion, which may be disputed inch by inch after the defenses are dismantled. It usually consists of two faces which make a reëntering angle.

To furnish with a retrenchment; as, to retrench bastions.

A small round tower erected at the foot of a bastion. [Obs.]

A small piece of artillery. Wilhelm. On the bastions were planted culverins and sakers. Macaulay. The culverins and sakers showing their deadly muzzles over the rampart. Hawthorne.

Projectiong outwardly; as, a salient angle; -- opposed to reëntering. See Illust. of Bastion.

The angle of a bastion included between the face and flank. See Illust. of Bastion.

and Illust. of Ravelin. -- Interior side (Fort.), the line drawn from the center of one bastion to that of the next, or the line curtain produced to the two oblique radii in front. H. L. Scott. -- Side by side, close together and abreast; in company or along with. -- To choose sides, to select those who shall compe…

part of the side which is terminated by the flank prolonged, and the angle of the nearest bastion. Stocqueler. Caustic surface, Heating surface, etc. See under Caustic, Heating, etc. -- Surface condensation, Surface condenser. See under Condensation, and Condenser. -- Surface gauge (Mach.), an instrument consisting o…

An outwork in the main ditch, in front of the curtain, between two bastions. See Illust. of Ravelin.

their strength, procure additional ground beyond the ditch, or cover the shoulders of the bastions.

er, above. -- Round tower. See under Round, a. -- Shot tower. See under Shot. -- Tower bastion (Fort.), a bastion of masonry, often with chambers beneath, built at an angle of the interior polygon of some works. -- Tower mustard (Bot.), the cruciferous plant Arabis perfoliata. -- Tower of London, a collection of b…