The term 'curved cutter' can refer to two different tools: a SCIMITAR and an ADZ. A SCIMITAR is a curved, single-edged sword that was used in the Middle East and Central Asia from the early Iron Age to the early 19th century. An ADZ is a tool with a curved blade that is used for shaping wood or other materials. Both of these tools are used for cutting and shaping materials, making them ideal for a variety of tasks.