1. [noun] The loss or separation of a body part, either by surgery or due to trauma
2. [noun] An abrupt change in the course of a river, typically from one channel to another
3. [noun] (hydrology) Movement of soil during a flood, or during a change in the course of a river, especially when a resulting change of land ownership is involved
4. [noun] An abrupt change in the course of a stream that forms the boundary between two parcels of land resulting in the loss of part of the land of one landowner and a consequent increase in the land of another.
5. [noun] A forcible tearing or surgical separation of one body part from another.
