tetralogyof Fallot

tetralogy of Fal·lot (fă-lōʹ) n.

A congenital malformation of the heart characterized by a defect in the ventricular septum, misplacement of the origin of the aorta, narrowing of the pulmonary artery, and enlargement of the right ventricle.

  [After Étienne Fallot (1850-1911), French physician.]

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