pacemaker
noun
pace·mak·er
ˈpās-ˌmā-kər 
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
Examples of pacemaker in a Sentence
has long been regarded as a pacemaker in home electronics
Recent Examples on the Web
Based on Hackman's pacemaker data, his approximate date of death is February 18.
—
Mark Davis, Newsweek, 14 Mar. 2025
The researchers are confident that the battery could permanently power implantable devices like pacemakers or brain-computer interfaces.
—Ameya Paleja, Interesting Engineering, 14 Mar. 2025
After triple bypass and mitral valve repair surgery at the age of 89, a pacemaker was installed in my chest.
—Si Liberman, Hartford Courant, 10 Mar. 2025
February 18 Hackman's pacemaker recorded atrial fibrillation.
—Hannah Parry, Newsweek, 8 Mar. 2025
See All Example Sentences for pacemaker
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Mark Davis, Newsweek, 14 Mar. 2025
The researchers are confident that the battery could permanently power implantable devices like pacemakers or brain-computer interfaces.
—Ameya Paleja, Interesting Engineering, 14 Mar. 2025
After triple bypass and mitral valve repair surgery at the age of 89, a pacemaker was installed in my chest.
—Si Liberman, Hartford Courant, 10 Mar. 2025
February 18 Hackman's pacemaker recorded atrial fibrillation.
—Hannah Parry, Newsweek, 8 Mar. 2025
See All Example Sentences for pacemaker
Cite this Entry
“Pacemaker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pacemaker. Accessed 23 Apr. 2025.
Copy CitationKids Definition
pacemaker
noun
pace·mak·er
ˈpā-ˌsmā-kər
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
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
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