noun

pacemaker

A person, animal, or thing that sets the pace for others.

The pacemaker keeps the runners moving at a steady speed.

Etymology

Pacemaker combines pace, the rate of movement, with maker. The compound names the participant or mechanism that establishes a rate for others to follow.

More examples

  • The trainer enters a second horse as a pacemaker.
  • Two pacemakers take turns leading the runners through the first mile.
  • The company remains a pacemaker for innovation in the industry.

Forms

pacemaker · pacemakers

Similar words

pacesetter
Often interchangeable; also commonly describes someone setting standards for others.
leader
May guide others without setting their speed or standard.