What's is a shunt? In biology

In biology, a shunt is a hole or a small passage which moves, or allows movement of, fluid from one part of the body to another

In medicine, a shunt is a hole or a small passage which moves, or allows movement of, fluid from one part of the body to another. The term may describe either congenital or acquired shunts; and acquired shunts (sometimes referred to as iatrogenic shunts) may be either biological or mechanical.