pacemaker

Universal Words noun 1 an electronic device that is put inside a person's body to help their heart beat regularly: After his last heart attack, he was fitted with a pacemaker. 2 (also pacesetter especially in AmE) a person or an animal that begins a race quickly so that the other competitors will try to copy the speed and run a fast race: (figurative) The big banks have been the pacesetters in developing the system. * Early pacemakers often drop out of a race before the finish. 3 (also pacesetter especially in AmE) a person or team that is winning in a sports competition: The local club are now only one point off the pacemakers.