Achalasia
/eɪkəˈleɪzi.ə/ noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A neuromuscular condition where a ring of muscles is unable to relax fully, causing obstruction of a lumen, as:; Such obstruction in the esophagus: esophageal achalasia. countable, especially, uncountable, usually
- 2 A neuromuscular condition where a ring of muscles is unable to relax fully, causing obstruction of a lumen, as:; Such obstruction in the esophagus: esophageal achalasia.; Such esophageal achalasia of primary (idiopathic) nature: primary esophageal achalasia. countable, especially, uncountable, usually
- 3 A neuromuscular condition where a ring of muscles is unable to relax fully, causing obstruction of a lumen, as:; Such obstruction due to impairment of other gastrointestinal tract smooth muscles. countable, uncountable
Etymology
From Ancient Greek ἀ- (a-, “not”) + χάλασις (khálasis, “relaxation”), from χαλάω (khaláō, “I loosen”).