appendicitis
B1CEFR level
30/100Rarity: fairly common
TechnicalRegister
Acute inflammation of the appendix, typically causing pain that shifts to the right iliac fossa.
The migrating pain, fever and raised inflammatory markers were classic for appendicitis.
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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