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 Attached to the post was a picture of the actor, with his pacemaker depicted as a cartoon ticking bomb atop his chest. Zoe G Phillips, The Hollywood Reporter, 28 Mar. 2024 Like solar panels, this pacemaker is powered by light. Pengju Li, Discover Magazine, 23 Mar. 2024 The 76-year-old actor and former Governor of California shared a photograph from recovery, including a sight gag about his new pacemaker, depicted as a cartoon-esque time bomb. J. Kim Murphy, Variety, 29 Mar. 2024 Arnold Schwarzenegger thanked fans for their support Thursday following his pacemaker surgery earlier this month. Zoe G Phillips, The Hollywood Reporter, 28 Mar. 2024 Consequently, the pacemaker self-adhered to the right ventricle. IEEE Spectrum, 16 Mar. 2024 It is used to clean everything from catheters to syringes, pacemakers and plastic surgical gowns. Matthew Daly, Quartz, 14 Mar. 2024 His heart wasn’t beating fast enough, so doctors added a pacemaker. Jen Christensen, CNN, 30 Jan. 2024 Authorities say Carroll died in 2016, based on a digital record from his pacemaker, but that information was not reported. Bill Lukitsch, Kansas City Star, 20 Jan. 2024

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 19 Apr. 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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