avulsion
/əˈvʌlʃən/noun
mass noun
1- chiefly Medicine the action of pulling or tearing away【主医】撕脱（法）。
1.1
- Law the sudden separation of land from one property and its attachment to another, especially by flooding or a change in the course of a river【律】（尤指因洪水或河流改道引起的）土地突然变迁。比较ALLUVION.
派生词
avulse
verb词源
early 17th cent.: from Latin avulsio（n-）， from the verb avellere, from ab- 'from' + vallere 'pluck'.