Medicine/Medical. an electronic device implanted beneath the skin for providing a normal heartbeat by electrical stimulation of the heart muscle, used in certain heart conditions.
Anatomy, Physiology. any specialized tissue that governs a rhythmic or cyclic biological activity, as the sinoatrial node of the heart that controls heartbeat.
- pacemaking, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use pacemaker in a sentence
Claire happens to have a heart condition, as well as an attendant pacemaker, which will figure prominently and conveniently in the plot.The Gray Man Saps the Charm Out of Even Chris Evans and Ryan Gosling | Stephanie Zacharek | July 15, 2022 | Time
He has other conditions that his Type 2 diabetes could exacerbate, including high blood pressure and supraventricular tachycardia, for which he needs a pacemaker.Type 2 Diabetes Remission Is Possible. Here’s How to Do It | Michael O. Schroeder | March 17, 2022 | Time
Related to privacy is security — hackers can access data that’s locked away, or interfere with pacemakers and autonomous vehicles.Now that computers connect us all, for better and worse, what’s next? | Matthew Hutson | February 24, 2022 | Science News
Medical devices, such as orthopedic implants, dental fillings, and pacemakers, could also contribute.COVID-19 is overcrowding cemeteries and causing heavy metal pollution | Anuradha Varanasi | February 12, 2022 | Popular-Science
Also, if you’re wearing a pacemaker, you’ll also want a smart scale that can turn it off.
In DBS, a neurosurgeon implants electrodes in the brain that attach to a “pacemaker” for the brain.The Burden Robin Williams Carried: Diagnosed With Parkinson’s and Depression | Dr. Anand Veeravagu, MD, Tej Azad | August 15, 2014 | THE DAILY BEAST
The inevitable result is that the shovels move with rhythmic precision, and the slowest man becomes the pacemaker for the rest.
Behind a rapidly spinning limousine pedalled a grotesquely humped bicyclist, using the car as a pacemaker.Pipefuls | Christopher Morley
Miami, which had clung tenaciously to second place, also under restraint, was now sent after the flying pacemaker with a will.History of the Kentucky Derby, 1875-1921 | John Lawrence O'Connor
I'm not built for rapid work, but I guess I'll do with you for pacemaker.Motor Matt's Daring, or, True to His Friends | Stanley R. Matthews
Then one will come to grips with life, the pacemaker of style.Unicorns | James Huneker
British Dictionary definitions for 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
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
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 - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for pacemaker
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.
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Cultural definitions for pacemaker
A group of specialized muscle fibers in the heart that send out impulses to regulate the heartbeat. If the heart's built-in pacemaker does not function properly, an artificial pacemaker may be necessary — a small electrical device that also regulates the heartbeat by sending out impulses. An artificial pacemaker may be placed inside the body surgically or may be worn outside.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.