Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
an imperfection, failure, or absence.
congenital heart defect see congenital heart defect.
aortic septal defect see aortic septal defect.
atrial septal defect see atrial septal defect.
filling defect an interruption in the contour of the inner surface of stomach or intestine revealed by radiography, indicating excess tissue or substance on or in the wall of the organ.
neural tube defect see neural tube defect.
septal defect a defect in the cardiac septum resulting in an abnormal communication between opposite chambers of the heart. Common types are aortic septal defect, atrial septal defect, and ventricular septal defect. See also congenital heart defect.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
septal defectSee Atrial septal defect, Ventricular septal defect.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
septal defectAn abnormal opening in the central wall of the heart providing a communication from the right side to the left or vice versa. This is a developmental congenital defect and its significance varies from trivial to grave depending on its position and size. Popularly known as ‘hole in the heart’.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005