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achalasia Syllabification: ach·a·la·sia
Pronunciation: /ˌakəˈlāZH(ē)ə/

Definition of achalasia in English:


A condition in which the muscles of the lower part of the esophagus fail to relax, preventing food from passing into the stomach.
Example sentences
  • This case also illustrates the therapeutic dilemma if surgery fails in patients with achalasia.
  • If endoscopy shows no obvious abnormality a diagnosis of a primary motility disturbance of the oesophagus such as achalasia should be considered.
  • Patients with achalasia typically present with dysphagia to solids and liquids.


Early 20th century: from a-1 'without, not' + Greek khalasis 'loosening' (from khalan 'relax') + -ia1.

Definition of achalasia in:
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