pacer
1. [ noun ] (zoology,horse racing) a horse used to set the pace in racing
Synonyms: pacesetter pacemaker
Related terms: racehorse pace
2. [ noun ] (zoology) a horse trained to a special gait in which both feet on one side leave the ground together
Related terms: horse pace
Similar spelling:   pager
  Passer
  packer
  Passero
  Packera