cataplexy
C2CEFR level
90/100Rarity: very rare
TechnicalRegister
A sudden, transient loss of muscle tone triggered by strong emotion, characteristically associated with narcolepsy.
His cataplexy caused his knees to buckle whenever he laughed heartily, without any loss of consciousness.
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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