interatrial(redirected from interatrial septum primum)
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between the atria of the heart.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Between the atria of the heart.
Synonym(s): interauricular (1)
Farlex Partner Medical Dictionary © Farlex 2012
interatrialBetween the upper chambers of the heart.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005