One of the most notable examples of a highly curved sword is the scimitar. The scimitar is a type of sword characterized by its distinct curve, which gives it a unique appearance and functional advantages. The exact degree of curvature can vary, but scimitars typically have a pronounced curve along the entire length of the blade.

The term "scimitar" is often used to refer to a variety of curved swords from different regions and historical periods. However, the term is most commonly associated with the swords used in the Middle East, particularly in regions such as Persia (Iran) and the Ottoman Empire.

The scimitar's curvature allows for efficient cutting and slashing motions. The shape of the blade creates a longer cutting edge, which enhances the sword's cutting ability and increases the potential for devastating cuts. The curve also provides a balance between striking power and maneuverability.

It's important to note that the scimitar can take on different forms and variations depending on the specific culture, time period, and regional preferences. Some examples include the Persian shamshir, the Ottoman kilij, and the Arabian saif. Each of these swords has its own unique design features and cultural significance, but they are all recognized for their distinct curved blades.