phonocardiography
noun
pho·no·car·di·og·ra·phy ˌfō-nə-ˌkär-dē-ˈä-grə-fē 
: the process of producing a phonocardiogram
phonocardiograph
ˌfō-nə-ˈkär-dē-ə-ˌgraf
noun phonocardiographic
ˌfō-nə-ˌkär-dē-ə-ˈgra-fik
adjective 
Word History
Etymology
phono- + cardiography
First Known Use
1916, in the meaning defined above
Medical Definition
phonocardiography
noun
pho·no·car·di·og·ra·phy -ˌkärd-ē-ˈäg-rə-fē
plural phonocardiographies
: the recording of heart sounds by means of a phonocardiograph