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Meaning of acleistocardia

a•cleis•to•car•di•a

Pronunciation: (u-klī"stu-kär'dē-u, ā-klī"-), [key]
— n. Pathol.
  1. a failure of the foramen ovale of the heart to close.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.