minimum alveolar concentration
C2CEFR level
96/100Rarity: very rare
TechnicalRegister
The alveolar concentration of a volatile agent at which half of patients do not move in response to a surgical incision, used as a measure of anaesthetic potency.
I ran the sevoflurane at around one MAC, adjusting for her age and the fentanyl on board.
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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