pacemaker

pace·mak·er  (psmkr)

n.

1. Sports One who sets the pace in a race. Also called pacer, pacesetter.

2. A leader in a field: the fashion house that is the pacemaker. Also called pacesetter.

3.

a. A part of the body, such as the mass of muscle fibers of the sinoatrial node, that sets the pace or rhythm of physiological activity.

b. Any of several usually miniaturized and surgically implanted electronic devices used to stimulate or regulate contractions of the heart muscle.

4. Biochemistry A substance that regulates a series of related reactions.

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pacemaking adj. & n.

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pacemaker

Noun

1. an electronic device positioned in the body, next to the heart, to regulate the heartbeat

2. a competitor who, by leading a race, causes it to be run at a particular speed

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pacemaker  (psmkr)

1. Any of several usually miniaturized and surgically implanted electronic devices used to stimulate or regulate contractions of the heart muscle. Electrodes attached to the heart muscle conduct electrical signals generated from the pacemaker, which either provides constant electrical stimuli to regularize the heartbeat (fixed-rate pacemakers) or provides a stimulus only when electrical activity within the heart is abnormal (demand pacemakers). Pacemakers are used in the treatment of various arrhythmias.

2. A part of the body, such as the specialized mass of cardiac muscle fibers of the sinoatrial node, that sets the pace or rhythm of physiological activity.

Thesaurus

Noun	1.	pacemaker - a leading instance in its field; "the new policy will be a pacesetter in community relations" pacesetter exemplar, good example, example, model - something to be imitated; "an exemplar of success"; "a model of clarity"; "he is the very model of a modern major general"
	2.	pacemaker - a specialized bit of heart tissue that controls the heartbeat cardiac pacemaker, SA node, sinoatrial node cardiac muscle, heart muscle - the muscle tissue of the heart; adapted to continued rhythmic contraction
	3.	pacemaker - an implanted electronic device that takes over the function of the natural cardiac pacemaker artificial pacemaker electronic device - a device that accomplishes its purpose electronically
	4.	pacemaker - a horse used to set the pace in racing pacer, pacesetter bangtail, race horse, racehorse - a horse bred for racing

Translations

pacemaker [ˈpeɪsmeɪkəʳ] n (MED) → marcapasos m inv

pacemaker [ˈpeɪsmeɪkəʳ] pace n (Med) → stimulateur m cardiaque;

(Sport) (also: pacesetter) → meneur/euse de train

pacemaker [ˈpeɪsmeɪkəʳ] pace n (Med) → (Herz)schrittmacher m;

(Sport) (also: pacesetter) → Schrittmacher m

pacemaker [ˈpeɪsmeɪkəʳ] n (MED) → pacemaker m inv; stimolatore m cardiaco;

(SPORT) → chi fa l'andatura