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单词 pacemaker
释义

Definition of pacemaker in English:

pacemaker

noun ˈpeɪsmeɪkəˈpeɪsˌmeɪkər
  • 1A person or animal who sets the pace at the beginning of a race, sometimes in order to help a runner break a record.

    he acted as a pacemaker for Bannister when he broke the four-minute mile
    Example sentencesExamples
    • The big-city marathons, with their flat courses and pacemakers, are not a true test.
    • Eschewing the services of pacemakers he ran alone to a mind-boggling 7: 59.18 min, breaking his own world mark by almost three seconds.
    • He and Chris Chataway were the pacemakers as Bannister became the first man to break the four-minute barrier for the mile.
    • At 6 p.m. the wind subsided and Bannister gave the go - ahead to make the attempt to break the record with friends Chris Basher and Chris Chataway as pacemakers.
    • On Sunday it appeared she had forgotten the art of foot racing, as opposed to the time-trialling that she had done in her only three previous marathons, when she had twice broken the world record with the aid of male pacemakers.
    • But if the going came up really soft or even heavy, I would be looking for a horse with proven stamina, especially if there are pacemakers in the field.
    • Stevie Wood and Our Shiraz were early pacemakers, then Dantessa took over, bowling along with the rest of the field of 18 strung out.
    • Ridden by Kieren Fallon, the two-year-old took up the lead from pacemaker Hills of Aran halfway through the one mile race.
    • The tactics for the race were thrown into confusion when the scheduled pacemaker Newton was left standing at the start.
    • On the third lap his pacemaker moved aside as El Guerrouj put in a 55-second lap.
    • Toffan and McCaffery had entered Bosque Redondo mainly to serve as a pacemaker for stablemate Came Home, who wound up winning the race.
    • He ran solo for the last four kilometres and said later: ‘If I'd had some pacemakers, then I believe I could have broken 27 minutes.’
    • Paula Radcliffe emerged at the top of the slope, flanked by two pacemakers, nearly three minutes ahead of any other runner.
    • The pair was among seven for the 2,400-meter race, including both their respective pacemakers, Diyapour and High Action.
    • Okayo begins to accelerate away from the pacemakers, with Yingjie attempting to hang on in second.
    • We put a pacemaker in there just to make sure it was a strong pace and he had everybody beaten.
    • The two pacemakers, Temple Place for Motivator and Hazarista for Azamour, went five lengths clear of the chasing pack after two furlongs, with Motivator sitting in third while last year's winner Azamour was last of the 10 runners.
    • Bad horses will not do a job in any Group 1 as pacemakers - you have to run quality horses as pacemakers.
    • Hawk Wing was sent off at 1-2 and looked to have the one-mile race under control as he tracked his pacemaker Sholokhov.
    • That is some record for a horse used primarily in those races as a pacemaker.
    Synonyms
    pioneer, trailblazer, groundbreaker, experimenter, trendsetter, front runner, leader, leading light, guiding light, torch-bearer, originator, instigator, initiator, innovator, avant-gardist, developer, creator, discoverer, founder, founding father, architect
    1. 1.1 A person who sets standards of achievement for others.
      unbeaten Rangers are the surprise pacemakers
      Example sentencesExamples
      • This is a practice called ‘speeding up the line,’ for every man down the line must keep up with the pacemaker's pace or he'll be thrown out for another worker.
      • Even though the automobile industry had also remained the pacemaker when it came to wages and working standards for its employees, it was not without its periods of labor turbulence - nor was it lacking in the desire to find workable and satisfactory solutions to labor problems.
  • 2A device for stimulating the heart muscle and regulating its contractions.

    Example sentencesExamples
    • Medical devices such as cardiac pacemakers, cochlear implants, and bone growth stimulators are valuable tools in the treatment of patients with multiple medical needs.
    • The use of combined implantable defibrillators and atrio-biventricular pacemakers for patients with heart failure is likely to increase - clear indications for such devices are beginning to emerge
    • The most common forms of heart failure are treated with drugs and electrical devices such as pacemakers and implanted defibrillators, but if symptoms continue to worsen, other therapies are needed.
    • People with pacemakers and defibrillators who use arc welding devices and other kinds of heavy energy that involve magnetism or electricity tend to have problems.
    • For the medical device industry, only ads for risky devices such as pacemakers or artificial hearts must disclose negative side effects.
    1. 2.1 The part of the heart muscle (the sino-atrial node) which normally regulates contractions.
      Example sentencesExamples
      • In the pig study, the researchers used a standard adenovirus vector to introduce copies of a gene directly into one of the heart's pacemakers, a small area of tissue called the atrioventricular node.
      • The sinus node is a natural pacemaker in your heart that helps your heart beat steadily.
      • This node is called the pacemaker of the heart because it sets the rate of the heartbeat and causes the rest of the heart to contract in its rhythm.
      • The classical concept of the source of cardiac rhythm is that it originates from the sino-atrial node, the heart's natural pacemaker located on top of the right atrium.
      • Sinus dysrhythmia refers to a malfunction of the sinus node, the heart's natural pacemaker.
    2. 2.2 The part of an organ or of the body which controls rhythmic physiological activity.
      the brain's circadian pacemaker which regulates our ‘biological clock’
      Example sentencesExamples
      • Context.-Interstitial cells of Cajal are pacemaker cells in the smooth muscles of the gut.
      • In 1998 the journal Science published a report that indicated that light exposure to the back of the knee may reset the human circadian pacemaker.
      • Escape rhythms are the result of spontaneous activity from a subsidiary pacemaker, located in the atria, atrioventricular junction, or ventricles.
      • Our own internal pacemaker tunes our mental and physical energy levels more or less to the cycles of sunlight.
      • For this reason, the researchers decided to examine the output of the body's internal clock, called the circadian pacemaker.

Derivatives

  • pacemaking

  • adjective & noun
    • Going into this game two points adrift of the pacemaking Potters, the Saints pulled out all the stops to win in devastating style.
      Example sentencesExamples
      • Davitamon-Lotto and Quick Step are still sharing the pacemaking at the point of the pack.
      • Sick sinus syndrome is a generalized abnormality of cardiac impulse formation that may be caused by an intrinsic disease of the sinus node that makes it unable to perform its pacemaking function, or by extrinsic causes.
      • The Saul side now occupy second spot, one point behind pacemaking Round House with a host of teams lining up behind them.
      • At the moment they trail pacemaking Comber Rec by six points, but have two games in hand.

Rhymes

lacemaker
 
 

Definition of pacemaker in US English:

pacemaker

nounˈpāsˌmākərˈpeɪsˌmeɪkər
  • 1An artificial device for stimulating the heart muscle and regulating its contractions.

    Example sentencesExamples
    • For the medical device industry, only ads for risky devices such as pacemakers or artificial hearts must disclose negative side effects.
    • The use of combined implantable defibrillators and atrio-biventricular pacemakers for patients with heart failure is likely to increase - clear indications for such devices are beginning to emerge
    • Medical devices such as cardiac pacemakers, cochlear implants, and bone growth stimulators are valuable tools in the treatment of patients with multiple medical needs.
    • People with pacemakers and defibrillators who use arc welding devices and other kinds of heavy energy that involve magnetism or electricity tend to have problems.
    • The most common forms of heart failure are treated with drugs and electrical devices such as pacemakers and implanted defibrillators, but if symptoms continue to worsen, other therapies are needed.
    1. 1.1 The part of the heart muscle (the sinoatrial node) that normally performs this role.
      Example sentencesExamples
      • Sinus dysrhythmia refers to a malfunction of the sinus node, the heart's natural pacemaker.
      • This node is called the pacemaker of the heart because it sets the rate of the heartbeat and causes the rest of the heart to contract in its rhythm.
      • The sinus node is a natural pacemaker in your heart that helps your heart beat steadily.
      • The classical concept of the source of cardiac rhythm is that it originates from the sino-atrial node, the heart's natural pacemaker located on top of the right atrium.
      • In the pig study, the researchers used a standard adenovirus vector to introduce copies of a gene directly into one of the heart's pacemakers, a small area of tissue called the atrioventricular node.
    2. 1.2 The part of an organ or of the body that controls any other rhythmic physiological activity.
      Example sentencesExamples
      • Escape rhythms are the result of spontaneous activity from a subsidiary pacemaker, located in the atria, atrioventricular junction, or ventricles.
      • Our own internal pacemaker tunes our mental and physical energy levels more or less to the cycles of sunlight.
      • In 1998 the journal Science published a report that indicated that light exposure to the back of the knee may reset the human circadian pacemaker.
      • Context.-Interstitial cells of Cajal are pacemaker cells in the smooth muscles of the gut.
      • For this reason, the researchers decided to examine the output of the body's internal clock, called the circadian pacemaker.
  • 2

    another term for pacesetter
    Example sentencesExamples
    • The big-city marathons, with their flat courses and pacemakers, are not a true test.
    • On Sunday it appeared she had forgotten the art of foot racing, as opposed to the time-trialling that she had done in her only three previous marathons, when she had twice broken the world record with the aid of male pacemakers.
    • Eschewing the services of pacemakers he ran alone to a mind-boggling 7: 59.18 min, breaking his own world mark by almost three seconds.
    • Bad horses will not do a job in any Group 1 as pacemakers - you have to run quality horses as pacemakers.
    • The two pacemakers, Temple Place for Motivator and Hazarista for Azamour, went five lengths clear of the chasing pack after two furlongs, with Motivator sitting in third while last year's winner Azamour was last of the 10 runners.
    • On the third lap his pacemaker moved aside as El Guerrouj put in a 55-second lap.
    • We put a pacemaker in there just to make sure it was a strong pace and he had everybody beaten.
    • The tactics for the race were thrown into confusion when the scheduled pacemaker Newton was left standing at the start.
    • Ridden by Kieren Fallon, the two-year-old took up the lead from pacemaker Hills of Aran halfway through the one mile race.
    • Hawk Wing was sent off at 1-2 and looked to have the one-mile race under control as he tracked his pacemaker Sholokhov.
    • That is some record for a horse used primarily in those races as a pacemaker.
    • Stevie Wood and Our Shiraz were early pacemakers, then Dantessa took over, bowling along with the rest of the field of 18 strung out.
    • Toffan and McCaffery had entered Bosque Redondo mainly to serve as a pacemaker for stablemate Came Home, who wound up winning the race.
    • At 6 p.m. the wind subsided and Bannister gave the go - ahead to make the attempt to break the record with friends Chris Basher and Chris Chataway as pacemakers.
    • Okayo begins to accelerate away from the pacemakers, with Yingjie attempting to hang on in second.
    • Paula Radcliffe emerged at the top of the slope, flanked by two pacemakers, nearly three minutes ahead of any other runner.
    • He and Chris Chataway were the pacemakers as Bannister became the first man to break the four-minute barrier for the mile.
    • But if the going came up really soft or even heavy, I would be looking for a horse with proven stamina, especially if there are pacemakers in the field.
    • The pair was among seven for the 2,400-meter race, including both their respective pacemakers, Diyapour and High Action.
    • He ran solo for the last four kilometres and said later: ‘If I'd had some pacemakers, then I believe I could have broken 27 minutes.’
    Synonyms
    pioneer, trailblazer, groundbreaker, experimenter, trendsetter, front runner, leader, leading light, guiding light, torch-bearer, originator, instigator, initiator, innovator, avant-gardist, developer, creator, discoverer, founder, founding father, architect
 
 
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更新时间:2024/9/20 17:31:51