anaphylactic
C1CEFR level
65/100Rarity: rare
TechnicalRegister
Relating to a severe, rapidly developing allergic reaction that can threaten the airway and circulation.
The swelling lips and wheeze suggested an anaphylactic reaction to the insect sting.
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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