/euh vul"sheuhn/ , n.
1. a tearing away.
2. Law. the sudden removal of soil by change in a river's course or by a flood, from the land of one owner to that of another.
3. a part torn off.
[ 1615-25; avulsion- (s. of avulsio ), equiv. to avuls ( us ) torn off (see AVULSE) + -ion- -ION ]