pac·​er ˈpā-sər How to pronounce pacer (audio)
: one that paces
specifically : a horse whose predominant gait is the pace

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 Only 22 Camp fire victims were identified using conventional methods, including fingerprints, dental records and surgical devices, such as knee replacements, breast implants and pacer machines, according to a 2020 study in the Journal of Forensic Sciences. Jenny Jarvie, Anchorage Daily News, 1 Sep. 2023 Where the new findings differ substantially is in the positions of the pacers out front. Popular Science, 24 Aug. 2023 Andy was also a bridge pacer. John McPhee, The New Yorker, 12 Apr. 2021 Keep in mind that the pacer and timer do not work if the app is not being used in real time. Leslie Hsu Oh, Travel + Leisure, 22 Feb. 2023 Regardless of how well Indiana plays, Denver has too many weapons and will control the pacer of this one, back the Nuggets. Ian Firstenberg, Chicago Tribune, 9 Nov. 2022 And before Martin, only one high school athlete did it without the help of a pacer. Caitlin O'Kane, CBS News, 17 May 2022 In fact, Hazen prefers to run without a pacer and did so at Western, a formula that clearly works for him. Amanda Loudin, Outside Online, 9 July 2019 Our pacer witnessed some of our lowest points of tears, pain and discouragement. Danielle Snyder, Outside Online, 1 Oct. 2019 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'pacer.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1616, in the meaning defined at sense 1

Time Traveler
The first known use of pacer was in 1616

Dictionary Entries Near pacer

Cite this Entry

“Pacer.” Dictionary, Merriam-Webster, Accessed 30 Sep. 2023.

Medical Definition


pac·​er ˈpā-sər How to pronounce pacer (audio)
: pacemaker sense 2
electronic cardiac pacers

More from Merriam-Webster on pacer

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!