1. 
   chalasia
   Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles. ... Origin: G. Chalao, to loosen ... (05 Mar 2000) ...
   Found op http://www.mondofacto.com/facts/dictionary?chalasia
   
   
2. 
   chalasia
   (kә-la´zhә) relaxation of a bodily opening. an incompetent or relaxed cardiac sphincter that permits reflux of the contents of the stomach into the esophagus. A cause of regurgitation in infants, it is considered a developmental event with no sequelae and gradual resolution.
   Found op http://www.encyclo.co.uk/local/21001
   
   
3. 
   chalasia
   Type: Term Pronunciation: kă-lā′zē-ă, -lā′sis Definitions: 1. Inhibition and relaxation of any previously sustained contraction of muscle, usually of a synergic group of muscles.
   Found op http://www.medilexicon.com/medicaldictionary.php?t=16439
   
   

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