1. A process in which the direction and magnitude of the electrical forces of the heart are determined: The eminent cardiologist, Dr. Diedrich, pioneered the use of vectorcardiography for patients with heart diseases.
2. A method of charting the electro activity of the heart: Mrs. Carson, the medical technician, arranged to have a vectorcardiography of Sally's heart beat and e-mailed the results to her cardiologist.