http://www.nationmaster.com/encyclopedia/Kilij
The kilij (also spelled kilic) is a sword used by the Ottoman Empire starting around the late 15th century. These blades were a distinct variation on the Turko-Mongol sabers that had been used over all the lands touched by the empire of the Kahns.
The oldest surviving examples sport a long blade with a gentle curve slightly more noticeable in the distal half. The width of the blade stays thin (with a slight taper) up until the last 30% of its length, at which point it flares deeper. This distinctive flaring tip is called a "yelman" which greatly adds to the cutting power of the sword. Swords of the next couple of centuries were mainly of the Persian shamshir variety; Persian blades (that did not have the yelman) were fitted with Ottoman hilts. These hilts normally had slightly larger upper guards, and sported a bobble of a end-grip compared to the parent shamshir. In the mid 18th century the kilij produced looked much more like the original design, though shorter, much more acutely curved, and sporting a deep blade with an even deeper yelman. In addition to the flared tip, these blades have a distinct "T-shaped" cross section to the back of the blade. This allows even greater strength and hence greater ability to cause grievous wounds when cleaving. The flared and 'cut away' profile of these thick blades gave it the archetypal 'Voyages of Sinbad' appearance.
Some of these shorter Kilij are also referred to as "Pala" but there does not seem to be a clear cut distinction in naming.