1. 
   aural atresia
   absence of closure of the auditory canal.
   Found op http://www.encyclo.co.uk/local/21001
   
   
2. 
   Aural Atresia
   A condition in which the external ear canal is missing or underdeveloped. In most cases, the inner ear and auditory nerve are completely normal. However, the external and middle ear is not normal. Doctors generally diagnose a baby with this birth defect shortly after delivery during an examination. ...
   Found op http://www.pregnology.com/AZ/A/10
   
   

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