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1. (n.) atresia
the absence, or failure to develop, of a normal body opening or duct, as the ear canal.
Etymology: (1800–10; < Gk a-a -6+três(is) perforation +-ia -ia)
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| Definition of 'atresia' |
Princeton's WordNet |
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1. (noun) atresia
an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent
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| Definition of 'atresia' |
Webster Dictionary |
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1. (noun) atresia
absence or closure of a natural passage or channel of the body; imperforation
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Definitions of atresia 
