telomerase
C1CEFR level
70/100Rarity: rare
TechnicalRegister
An enzyme that lengthens chromosome ends and confers replicative immortality on cancer cells.
Reactivation of telomerase allows malignant cells to divide indefinitely without shortening their telomeres.
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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