pacemaker
Definition
- Noun:
- A person, animal, or thing that sets the pace or speed for others in a race or competition. It refers to the leader or frontrunner that establishes the rate of movement or progress.
- An electronic device implanted in the body to regulate the heartbeat. It is a medical device that sends electrical impulses to the heart muscle to maintain a suitable heart rate.
- A specialized area of tissue in the heart (the sinoatrial node) that naturally generates electrical impulses to control the heartbeat. This is the body's internal, biological pacemaker.
Examples of Usage
- Noun (Person/Thing setting pace):
- The young runner acted as the pacemaker for the first half of the marathon, helping the favorite conserve energy.
- This new software is a pacemaker for innovation in the industry.
- Noun (Medical device):
- After the surgery, her pacemaker ensured her heart maintained a steady rhythm.
- The doctor recommended implanting a pacemaker to treat his bradycardia.
- Noun (Biological tissue):
- Damage to the heart's natural pacemaker can cause arrhythmias.
Advanced Usage
- "To set the pace" / "To act as a pacemaker": To establish a standard or rate of progress for others to follow.
- The company's research division sets the pace for the entire sector.
Variants and Related Words
- Pacesetter (noun): A direct synonym, especially for the first definition (a person or thing that establishes a leading standard).
- The treaty was a pacesetter for international environmental agreements.
- Cardiac pacemaker (noun phrase): The full technical term for the medical device.
- Sinoatrial (SA) node (noun phrase): The anatomical term for the heart's natural pacemaker tissue.
Synonyms
- For setting pace: Frontrunner, leader, trailblazer, trendsetter, pacesetter.
- For medical device: (There is no common single-word synonym; it is referred to as an "implantable cardiac device").
Related Phrases
- Artificial pacemaker: Another term for the implanted electronic device, distinguishing it from the body's natural one.
- He received an artificial pacemaker last year.
Noun
-
a horse used to set the pace in racing
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an implanted electronic device that takes over the function of the natural cardiac pacemaker
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a specialized bit of heart tissue that controls the heartbeat
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a leading instance in its field
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the new policy will be a pacesetter in community relations
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