achalasia
C2CEFR level
98/100Rarity: very rare
TechnicalRegister
A motility disorder in which the lower oesophageal sphincter fails to relax and oesophageal peristalsis is absent, impairing the passage of food into the stomach.
Manometry confirmed achalasia, so the patient was referred for pneumatic dilatation of the sphincter.
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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