avulsionis

Avulsionis is a term used in geology and paleontology to describe a significant and often rapid displacement or tearing away of a geological feature or a body part. In a geological context, avulsionis can refer to the sudden change in the course of a river, where the main channel is abandoned and a new one is formed. This process can be triggered by events such as floods, seismic activity, or sediment deposition that obstructs the original channel. The old riverbed may then become a distinct geological feature, often characterized by abandoned channels, oxbow lakes, or sediment deposits.

In a biological or medical context, avulsionis can describe the tearing away of a body part, such as a limb, from the main body. This is typically a severe traumatic injury resulting from extreme forces. It can also refer to the avulsion of a tendon or ligament from its bony attachment, often occurring during strenuous physical activity or accidents. The term emphasizes the forceful separation of tissue. While the geological and biological uses of avulsionis differ in their specific applications, both refer to a process of forceful separation and displacement.