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 On March 12, King Harald received the permanent pacemaker and remained in the hospital in Oslo for a few days. Janine Henni, Peoplemag, 22 Apr. 2024 But with the pacemaker in place, fans are wondering how this will affect his career as an action star. Sara Vallone, Miami Herald, 29 Mar. 2024 Nearly all implantable medical devices, such as pacemakers and neurostimulators, are limited by the capacity of their onboard batteries. IEEE Spectrum, 27 Mar. 2024 It’s used to sanitize 20 billion devices in the U.S. per year, such as pacemakers, catheters, and ventilators. Lizzy Lawrence, STAT, 14 Mar. 2024 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

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 2 May. 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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