Liberal Dictionary English Dictionary
persistent truncus arteriosus [trŭng′kəs är-tîr′ē-ō′səs] n.
- A congenital cardiovascular deformity resulting from the failure of the septum between the aorta and pulmonary trunk to develop and characterized by a common arterial trunk opening out of both ventricles with the pulmonary arteries branching from the ascending common trunk.
