vectorcardiography

noun

vec·​tor·​car·​di·​og·​ra·​phy -ˌkärd-ē-ˈäg-rə-fē 

plural vectorcardiographies

: a method of recording the direction and magnitude of the electrical forces of the heart by means of a continuous series of vectors that form a curving line around a center

vectorcardiographic

-ē-ə-ˈgraf-ik 

adjective