A lancet is a small, pointed surgical instrument used for making incisions in the skin or for puncturing tissues. It is commonly used in medical procedures, such as drawing blood or performing minor surgeries. The design of a lancet allows for precise cuts, making it an essential tool in various healthcare settings. In addition to its medical use, the term lancet can also refer to a type of architectural window with a tall, narrow shape, often seen in Gothic-style buildings. These windows typically have a pointed arch at the top, contributing to the overall aesthetic of structures like cathedrals and churches.