avulsion
C1CEFR level
88/100Rarity: very rare
TechnicalRegister
Medicine noun
The forcible tearing away of a fragment of bone at the site where a tendon or ligament attaches.
A sudden hamstring contraction caused an avulsion of the ischial tuberosity apophysis in the sprinter.
Law noun
The sudden loss or shift of land caused by the abrupt action of water.
The flood's avulsion cut a new channel and left half the meadow stranded on the far bank.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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