a heavy one-edged sword with a thickened back. It usually curves and tapers slightly at the point, but it may be perfectly straight. It is probably an evolution or modification of the Arabian scimitar. The saber is a regular part of the cavalryman's equipment. When not in the hand it is carried in a scabbard. See SWORD. Flashed all the sabers bare, Flashed as they turned in air, Sab'ring the gunners there. --Tennyson, Charge of the Light Brigade.