|
|
pacemaker, pacesetter | a leading instance in its field | ||
|
|
pacemaker, cardiac pacemaker, sinoatrial node, SA node | a specialized bit of heart tissue that controls the heartbeat | ||
|
|
pacemaker, artificial pacemaker | an implanted electronic device that takes over the function of the natural cardiac pacemaker | ||
|
|
pacer, pacemaker, pacesetter | a horse used to set the pace in racing |