tetralogy of Fallot
noun
te·tral·o·gy of Fal·lot
| \ te-ˈtral-ə-jē-əv-fä-ˈlō
\
\
Medical Definition of tetralogy of Fallot
: a congenital abnormality of the heart characterized by pulmonary stenosis, an opening in the interventricular septum, malposition of the aorta over both ventricles, and hypertrophy of the right ventricle