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Definition of Interventricular septum
1. Noun. (anatomy) The stout wall separating the lower chambers (the ventricles) of the heart from one another. ¹
¹ Source: wiktionary.com
Medical Definition of Interventricular septum
1. The stout wall separating the lower chambers (the ventricles) of the heart fromone another. A hole in the interventricular septum is termed a ventricular septal defect (vsd). (12 Dec 1998)