avulsion

avulsion
[əˈvʌlʃ(ə)n]
noun
  1. [mass noun](chiefly Medicine)the action of pulling or tearing away
    (主医)撕脱（法）
    ■(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
avulse
verb
语源
  1. early 17th cent.: from Latin avulsio(n-), from the verb avellere, from ab- 'from' + vallere 'pluck'
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