congestive heart failure
B2CEFR level
58/100Rarity: uncommon
TechnicalRegister
A chronic condition in which the heart cannot pump blood effectively, leading to fluid build-up in the lungs and peripheral tissues.
The patient's congestive heart failure had worsened, and he now had marked oedema in both ankles.
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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