desaturate
C2CEFR level
70/100Rarity: rare
TechnicalRegister
For blood oxygen levels to fall, typically shown by a dropping pulse oximeter reading.
The patient desaturated to 84% during the procedure, so we increased the oxygen.
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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