pacemaker

noun

pace·​mak·​er ˈpās-ˌmā-kər How to pronounce pacemaker (audio)
1
a
: one that sets the pace for another
b
: one that takes the lead or sets an example
2
a
: a group of cells or a body part (such as the sinus node of the heart) that serves to establish and maintain a rhythmic activity
b
: an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart
pacemaking noun

Examples of pacemaker in a Sentence

has long been regarded as a pacemaker in home electronics
Recent Examples on the Web People, pacemakers, and glaucoma are not the stuff that can be pasted into a Microsoft document or onto a sheet of paper. Lore Segal, The New Yorker, 29 Sep. 2024 Devices called pacemakers can also treat arrhythmia and manage related palpitations. Mark Gurarie, Verywell Health, 16 Sep. 2024 The same heart doctor implanted a pacemaker, Hitt said. Daniel Gonzalez, USA TODAY, 10 Sep. 2024 My mom has a pacemaker, and my dad has Alzheimer’s. R. Eric Thomas, The Mercury News, 7 Aug. 2024 See all Example Sentences for pacemaker 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'pacemaker.' 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

1884, in the meaning defined at sense 1a

Time Traveler
The first known use of pacemaker was in 1884

Dictionary Entries Near pacemaker

Cite this Entry

“Pacemaker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pacemaker. Accessed 9 Oct. 2024.

Kids Definition

pacemaker

noun
pace·​mak·​er ˈpā-ˌsmā-kər How to pronounce pacemaker (audio)
1
: a group of cells or a bodily part (as of the heart) that serves to establish and maintain a rhythmic bodily activity
2
: an electrical device for steadying or establishing the heartbeat

Medical Definition

pacemaker

noun
pace·​mak·​er ˈpā-ˌsmā-kər How to pronounce pacemaker (audio)
1
: a group of cells or a body part (as the sinoatrial node of the heart) that serves to establish and maintain a rhythmic activity
2
: an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart

called also pacer

More from Merriam-Webster on pacemaker

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