transferrin
C2CEFR level
85/100Rarity: very rare
TechnicalRegister
The plasma glycoprotein responsible for binding and transporting iron between sites of absorption, storage and utilisation.
In iron deficiency, transferrin concentration rises while its saturation falls.
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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