diastology

di·as·tol·o·gy

(dī'as-tol'ŏ-jē), The study or science of cardiac diastole and its components.

diastology

(dī″ăs-tol′ŏ-jē) [ diastole + -logy] The scientific study of the heart muscle when it is not contracting but is in diastole (at rest).