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1An artificial device for stimulating the heart muscle and regulating its contractions.
- ‘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.’
- ‘Medical devices such as cardiac pacemakers, cochlear implants, and bone growth stimulators are valuable tools in the treatment of patients with multiple medical needs.’
- ‘For the medical device industry, only ads for risky devices such as pacemakers or artificial hearts must disclose negative side effects.’
- ‘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.’
- ‘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’
- 1.1 The part of the heart muscle (the sinoatrial node) that normally performs this role.
- ‘The sinus node is a natural pacemaker in your heart that helps your heart beat steadily.’
- ‘Sinus dysrhythmia refers to a malfunction of the sinus node, the heart's natural pacemaker.’
- ‘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.’
- ‘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.’
- 1.2 The part of an organ or of the body that controls any other rhythmic physiological activity.
- ‘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.’
- ‘For this reason, the researchers decided to examine the output of the body's internal clock, called the circadian pacemaker.’
- ‘Context.-Interstitial cells of Cajal are pacemaker cells in the smooth muscles of the gut.’
- ‘Our own internal pacemaker tunes our mental and physical energy levels more or less to the cycles of sunlight.’
- ‘Escape rhythms are the result of spontaneous activity from a subsidiary pacemaker, located in the atria, atrioventricular junction, or ventricles.’
2another term for pacesetter
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, architectView synonyms
- ‘That is some record for a horse used primarily in those races as a pacemaker.’
- ‘He and Chris Chataway were the pacemakers as Bannister became the first man to break the four-minute barrier for the mile.’
- ‘Hawk Wing was sent off at 1-2 and looked to have the one-mile race under control as he tracked his pacemaker Sholokhov.’
- ‘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.’
- ‘The tactics for the race were thrown into confusion when the scheduled pacemaker Newton was left standing at the start.’
- ‘Toffan and McCaffery had entered Bosque Redondo mainly to serve as a pacemaker for stablemate Came Home, who wound up winning the race.’
- ‘Paula Radcliffe emerged at the top of the slope, flanked by two pacemakers, nearly three minutes ahead of any other runner.’
- ‘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.’
- ‘Ridden by Kieren Fallon, the two-year-old took up the lead from pacemaker Hills of Aran halfway through the one mile 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.’’
- ‘Okayo begins to accelerate away from the pacemakers, with Yingjie attempting to hang on in second.’
- ‘The big-city marathons, with their flat courses and pacemakers, are not a true test.’
- ‘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.’
- ‘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.’
- ‘We put a pacemaker in there just to make sure it was a strong pace and he had everybody beaten.’
- ‘Stevie Wood and Our Shiraz were early pacemakers, then Dantessa took over, bowling along with the rest of the field of 18 strung out.’
- ‘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 the third lap his pacemaker moved aside as El Guerrouj put in a 55-second lap.’
- ‘The pair was among seven for the 2,400-meter race, including both their respective pacemakers, Diyapour and High Action.’
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