atrophy
C1CEFR level
65/100Rarity: rare
TechnicalRegister
Medicine noun
Wasting away of muscle or tissue from disuse or disease.
Weeks in a cast left visible atrophy in the calf.
Business verb
To weaken or waste away through disuse.
When they outsourced engineering, their in-house design skills quietly atrophied.
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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