Definition of pacemaker
1a : one that sets the pace for anotherb : 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 activityb : an electrical device for stimulating or steadying the heartbeat or reestablishing the rhythm of an arrested heart
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Examples of pacemaker in a Sentence
has long been regarded as a pacemaker in home electronics
Recent Examples of pacemaker from the Web
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Treatment might involve medication, a pacemaker insertion, bed rest or a cardioversion, in which an electric jolt resets the heart’s rhythm.
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Think of the difference between eyeglasses, which touch the body, and a pacemaker, which lies next to the heart.
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Hall of Fame Los Angeles Dodgers manager Tommy Lasorda was released from the hospital and is at home resting comfortably after undergoing surgery on Thursday to replace the pacemaker in his heart, the team announced.
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Tommy Lasorda, the Hall of Fame Dodgers manager, underwent surgery on Thursday to replace his pacemaker.
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Hall of Fame manager Tom Lasorda is recovering after surgery to replace his pacemaker.
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Researchers at Children’s Hospital Boston are learning how to use patients’ own cells to create electrically conductive tissue, which could be replace pacemakers.
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.
1884
First Known Use of pacemaker
1884
PACEMAKER Defined for English Language Learners
pacemaker
playDefinition of pacemaker for English Language Learners
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medical : a small electrical machine put inside a person to make the heart beat evenly
Medical Dictionary
pacemaker
playMedical 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
Learn More about pacemaker
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See 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
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