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
Levine's daughter, Jesse, was born with a rare heart defect requiring multiple surgeries and a lifelong pacemaker.
—
Kate Vitasek, Forbes, 25 Oct. 2024
With the help of a pacemaker and several medications, Wilson was able to live a normal life, his mother said.
—Kelly Davis, The Mercury News, 4 Nov. 2024
Elevators stopped working between floors, stoplights stopped working at intersections and life-saving pacemakers were rendered useless.
—Mars King, Twin Cities, 30 Oct. 2024
Loretta voices concern for her pacemaker, a ruse to escape Doreen’s hold.
—Erin Jensen, USA TODAY, 8 Oct. 2024
See all Example Sentences for pacemaker 
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Kate Vitasek, Forbes, 25 Oct. 2024
With the help of a pacemaker and several medications, Wilson was able to live a normal life, his mother said.
—Kelly Davis, The Mercury News, 4 Nov. 2024
Elevators stopped working between floors, stoplights stopped working at intersections and life-saving pacemakers were rendered useless.
—Mars King, Twin Cities, 30 Oct. 2024
Loretta voices concern for her pacemaker, a ruse to escape Doreen’s hold.
—Erin Jensen, USA TODAY, 8 Oct. 2024
See all Example Sentences for pacemaker
Dictionary Entries Near pacemaker
Cite this Entry
“Pacemaker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pacemaker. Accessed 29 Nov. 2024.
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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