aortic septal defect

Medical Dictionary

aortic septal defect n.
A small congenital opening between the aorta and pulmonary artery just above the semilunar valves. Also called aorticopulmonary septal defect.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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