1 pacemaker | Definition of pacemaker

pacemaker

noun
pace·​mak·​er | \ ˈpās-ˌmā-kər How to pronounce pacemaker (audio) \

Definition of pacemaker

1a : one that sets the pace for another
b : one that takes the lead or sets an example
2a : 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

Keep scrolling for more

Other Words from pacemaker

pacemaking \ ˈpās-​ˌmā-​kiŋ How to pronounce pacemaking (audio) \ noun

Synonyms & Antonyms for pacemaker

Synonyms

bellwether, leader, pacer, pacesetter, trendsetter

Antonyms

follower, imitator

Visit the Thesaurus for More 

Examples of pacemaker in a Sentence

has long been regarded as a pacemaker in home electronics

Recent Examples on the Web

Watson also worries that the needle itself impairs something that acts like a pacemaker in the crab's heart. Caren Chesler, Popular Mechanics, "The Blood of the Crab," 23 Aug. 2019 The industry is also critically important to the U.S.; for example, nearly every pacemaker sewn into the hearts of Americans is assembled in a maquiladora. Denise Davidsonwriter, San Diego Union-Tribune, "In ‘City of Omens,’ author shares women’s tales of survival in Tijuana," 16 June 2019 But as horror stories about vulnerable pacemakers or insulin pumps persist, and ransomware continues to target hospitals around the world, that more casual approach has felt increasingly insufficient. Lily Hay Newman, WIRED, "A Model Hospital Where the Devices Get Hacked—on Purpose," 6 Aug. 2019 Papers sent anonymously to The Times described how the removal of pacemaker wires installed during surgery had caused bleeding that could not be repaired quickly because no cardiac surgeon was on duty. Scott Shane, New York Times, "‘Would Dad Approve?’ Neil Armstrong’s Heirs Divide Over a Lucrative Legacy," 27 July 2019 Current pacemaker batteries have a life span of seven to 10 years, and replacing them entails expensive surgery. Harini Barath, Scientific American, "New Pacemaker Harvests Energy from the Heart," 28 May 2019 At some point, likely after Armstrong’s Aug. 11 email to Hansen, the Fairfield heart-care team decided Armstrong needed a pacemaker to regulate his heart rhythm. Anne Saker, Cincinnati.com, "Neil Armstrong: Mercy Health paid his family $6 million settlement after his death," 23 July 2019 Children's staff confirmed the 10-year-old had a pacemaker on her heart, a port to receive IVIG and IV fluids, as well as a gastro tube. Karen Pilarski, Milwaukee Journal Sentinel, "Mom bound for trial in case of 10-year-old who police say received unnecessary medical procedures based on false health information," 10 June 2019 Henry was able to come home from the hospital after five days, but Foster saw other children who weren't as lucky, children as young as three getting pacemakers, babies connected to wires and monitors. Scott Wartman, Cincinnati.com, "'We need to step up.' Air Force pilot, daughter of immigrants launches campaign against Steve Chabot," 1 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'pacemaker.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of pacemaker

1884, in the meaning defined at sense 1a

Keep scrolling for more

Keep scrolling for more

More Definitions for pacemaker

pacemaker

noun

English Language Learners Definition of pacemaker

medical : a small electrical machine put inside a person to make the heart beat evenly

pacemaker

noun
pace·​mak·​er | \ ˈpā-ˌsmā-kər How to pronounce pacemaker (audio) \

Medical Definition of pacemaker

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

Keep scrolling for more

More from Merriam-Webster on pacemaker

Rhyming Dictionary: Words that rhyme with pacemaker

Thesaurus: All synonyms and antonyms for pacemaker

Spanish Central: Translation of pacemaker

Nglish: Translation of pacemaker for Spanish Speakers

Britannica.com: Encyclopedia article about pacemaker