biofilm
C1CEFR level
68/100Rarity: rare
TechnicalRegister
A structured community of microorganisms embedded in a self-produced matrix adhering to a surface.
Bacteria within a catheter biofilm are shielded from antibiotics and from the host immune response.
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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