prolapse
B1CEFR level
40/100Rarity: uncommon
TechnicalRegister
The slipping down of a body part from its normal position, as when the umbilical cord descends ahead of the foetus.
A cord prolapse is an emergency because pressure on the cord can compromise the baby.
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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