Noun: pacer pey-su(r)
- A horse used to set the pace in racing
"The pacer led the pack for the first half of the race";
- pacemaker, pacesetter
- A horse trained to a special gait in which both feet on one side leave the ground together
"The pacer moved smoothly around the track with its distinctive gait"
Derived forms: pacers
Type of: bangtail [US, informal], Equus caballus, horse, hoss [US, informal], neddy [Austral, informal], pony [informal], race horse, racehorse
Encyclopedia: Pacer