SkyfireDict

pacemaker   (TTS Sound)

The noun pacemaker has 4 senses

• pacesetter, pacemaker -- (a leading instance in its field; "the new policy will be a pacesetter in community relations")


• 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)