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atresia: Meaning and Definition of

a•tre•sia

Pronunciation: (u-trē'zhu, -zhē-u), [key]
— n. Med.
  1. the congenital absence, or the pathological closure, of an opening, passage, or cavity.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
atremble Atreus
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