loosely descriptive of the hearts electrical axis when this is directed at approximately +60°. As a cardiac electrical position, recognized in the electrocardiogram when the QRS complex in lead aVF resembles V6 whereas that in aVL is small algebraically or absolutely.
Farlex Partner Medical Dictionary © Farlex 2012
sem·i·ver·ti·cal heart(sem'ē-vĕr'ti-kăl hahrt)
Descriptive of the heart's electrical axis when this is directed at approximately +60 degrees.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012