1. the forcible tearing away or separation of a body part or tissue
Usage: medical
2. the sudden removal of land by flood, currents, or change in course of a body of water
Usage: legal; geological

Examples

• The accident caused an avulsion of the scalp that required immediate surgery.
• The patient suffered a nerve avulsion in the motorcycle crash.
• Dental avulsion occurs when a tooth is completely knocked out of its socket.
• The river’s avulsion created a new channel and left the old town stranded.
• Property boundaries changed after the avulsion moved the riverbank.
• The storm caused significant avulsion along the coastline.