A shunt is a medical device or procedure that creates a pathway for fluid to flow from one area of the body to another. It is commonly used to relieve pressure caused by excess fluid, such as in conditions like hydrocephalus, where cerebrospinal fluid accumulates in the brain. Shunts can be made from various materials and are designed to ensure proper drainage and prevent complications. In addition to medical uses, the term "shunt" can also refer to electrical components that redirect current. In this context, a shunt allows for the measurement of electrical flow in circuits, helping to protect sensitive devices. Both types of shunts play crucial roles in their respective fields, ensuring safety and proper function.