interventricular septum

(redirected from Septum membranaceum)
Also found in: Medical.

interventricular septum

[¦in·tər·ven′trik·yə·lər ′sep·təm]
(anatomy)
The muscular wall between the heart ventricles. Also known as ventricular septum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.