ballistocardiograph
英[bəlɪstə\'kɑ:dɪəʊɡræf]
美[bəlɪstə\'kɑdɪəʊɡræf]
英英释义
Noun1. a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles
