Word

heart muscle, n.

the muscle tissue of the heart; adapted to continued rhythmic contraction
<noun.body>

cardiac muscle heart muscle

semantic pointers

hypernym

muscle, muscular tissue

part holonym

heart, pump, ticker

hyponym

pacemaker, cardiac pacemaker, sinoatrial node, SA node papillary muscle atrioventricular bundle, bundle of His, atrioventricular trunk, truncus atrioventricularis atrioventricular node myocardium Purkinje fiber Purkinje network, Purkinje's tissue, Purkinje's system