Eisenmenger’s complex

Eisenmenger’s complex /ī″sənmeng′ərz/ [Victor Eisenmenger, German physician, 1864–1932; L, complexus, encirclement] , a congenital heart disease characterized by a defect of the ventricular septum, a malpositioned aortic root that overrides the interventricular septum, and a dilated pulmonary artery.