pacer

noun

pac·​er ˈpā-sər 

1

: one that paces

specifically : a horse whose predominant gait is the pace

2

: pacemaker

Synonyms

• bellwether
• leader
• pacemaker
• pacesetter
• trendsetter

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

In one shot, five pacers form a half-diamond in front, beside, and behind the central runner. —Alex Hutchinson, Outside Online, 12 June 2025

During the power play, pacer Ben Dwarshuis’ struck twice, removing opener Phil Salt in the second over, followed by dismissing wicketkeeper Jamie Smith. —Paras J. Haji, Forbes, 22 Feb. 2025

But the coach features, the support for connection to other fitness devices and advanced bits like the virtual pacer mode? —Andrew Williams, Forbes.com, 31 Mar. 2025

Rajasthan, however, backed Archer and the pacer repaid the trust with a crucial performance in the side's six-run win over Chennai Super Kings followed by a match-winning 3-25 spell against Punjab Kings on Saturday. —Suramya Kaushik, Reuters, 6 Apr. 2025

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