pacer

noun

pac·​er ˈpā-sər 

1

: one that paces

specifically : a horse whose predominant gait is the pace

2

: pacemaker

Synonyms of pacer

• leader
• pacemaker

Examples of pacer in a Sentence

a highly competitive industry in which any company that isn't a pacer quickly becomes a belly-up also-ran

Recent Examples on the Web

India made three changes — Nitish Reddy is fit again, while pacer Prasidh Krishna and left-arm spinner Harsh Dubey were also included. — ABC News, 20 June 2026

Only veteran Indian pacer Bhuvneshwar Kumar, of Royal Challengers Bengaluru, has more wickets with 24. — Anantaajith Raghuraman, New York Times, 21 May 2026

Kentucky is the equine center of the nation, with horse farms producing prize-winning thoroughbreds, trotters, and pacers for many decades; distilleries have been making bourbon in the state legally (and illegally) for centuries. — Jonah Flicker, Robb Report, 29 Apr. 2026

The shifts were brought about by weather, his energy level, and his relationship with his pacers and the film crew. — Frederick Dreier, Outside, 22 Jan. 2026

Word History

First Known Use

1616, in the meaning defined at sense 1

Rhymes for pacer

• acer
• baser
• chaser
• racer
• spacer
• tracer
• eraser
• replacer
• radiotracer

Medical Definition

pacer

noun

pac·​er ˈpā-sər 

: pacemaker sense 2

electronic cardiac pacers