aqueous
C1CEFR level
78/100Rarity: rare
TechnicalRegister
Relating to the watery fluid in the front chamber of the eye that nourishes the cornea and lens.
The aqueous fluid drains through the angle, and blocked drainage can raise the pressure.
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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