Definition of Pacemaker in English :

Define Pacemaker in English

Pacemaker meaning in English

Meaning of Pacemaker in English

Pronunciation of Pacemaker in English

Pacemaker pronunciation in English

Pronounce Pacemaker in English


see synonyms of pacemaker


1. pacemaker, pacesetter

a leading instance in its field

Example Sentences:
'the new policy will be a pacesetter in community relations'

2. cardiac pacemaker, pacemaker, sa node, sinoatrial node

a specialized bit of heart tissue that controls the heartbeat

3. artificial pacemaker, pacemaker

an implanted electronic device that takes over the function of the natural cardiac pacemaker

4. pacemaker, pacer, pacesetter

a horse used to set the pace in racing

WordNet Lexical Database for English. Princeton University. 2010.


see synonyms of pacemaker
a person, horse, vehicle, etc, used in a race or speed trial to set the pace
a person, an organization, etc, regarded as being the leader in a particular field of activity
3. Also called: cardiac pacemaker
a small area of specialized tissue within the wall of the right atrium of the heart whose spontaneous electrical activity initiates and controls the beat of the heart
4. Also called: artificial pacemaker
an electronic device for use in certain cases of heart disease to assume the functions of the natural cardiac pacemaker

Collins English Dictionary. Copyright © HarperCollins Publishers


see synonyms of pacemaker
a runner, horse, automobile, etc. that sets the pace for others, as in a race
a person, group, or thing that leads the way or serves as a model
2.  Anatomy
a dense network of interwoven, specialized muscle fibers in the right atrium of the heart that controls the rhythm of the electrical impulses that cause the heartbeat
any of several body parts that control the rhythm of a biological activity, as an area in the stomach that controls stomach contractions
3.  Medicine
an electronic device implanted into the body and connected to the wall of the heart, designed to provide regular, mild, electric shock that stimulates contraction of the heart muscles and restores normalcy to the heartbeat

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.


see synonyms of pacemaker
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.
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.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.