tetralogy of Fallot
n 1: a congenital heart defect producing cyanosis; characterized
by four symptoms: pulmonary stenosis and ventricular septal
defect and malposition of the aorta over both ventricles
and hypertrophy of the right ventricle [syn: {tetralogy of
Fallot}, {Fallot's tetralogy}, {Fallot's syndrome}]