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[ih-lek-troh-kahr-dee-uh-gram] /ɪˌlɛk troʊˈkɑr di əˌgræm/
noun, Medicine/Medical.
the graphic record produced by an electrocardiograph.
Abbreviation: EKG, ECG.
Also called cardiogram.
Origin of electrocardiogram
First recorded in 1900-05; electro- + cardiogram Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for electrocardiogram
Contemporary Examples
Historical Examples
  • During an attack of unconsciousness in which there was no apex beat for about four minutes, the electrocardiogram was taken.

    Arteriosclerosis and Hypertension: Louis Marshall Warfield
  • Rick knew the kind of stuff Steve meant, because he had once watched Zircon getting an electrocardiogram.

  • Well, it depends on the configuration of the flip—if the flip resembles an electrocardiogram activity—it shows cardiac activity.

    Warren Commission (6 of 26): Hearings Vol. VI (of 15) The President's Commission on the Assassination of President Kennedy
British Dictionary definitions for electrocardiogram


a tracing of the electric currents that initiate the heartbeat, used to diagnose possible heart disorders ECG
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
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Word Origin and History for electrocardiogram

1904, from electro- + cardiogram.

Online Etymology Dictionary, © 2010 Douglas Harper
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electrocardiogram in Medicine

electrocardiogram e·lec·tro·car·di·o·gram (ĭ-lěk'trō-kär'dē-ə-grām')

Abbr. ECG, EKG The curve traced by an electrocardiograph. Also called cardiogram.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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electrocardiogram in Science
A graphic recording of the electrical activity of the heart, used to evaluate cardiac function and to diagnose arrhythmias and other disorders. ◇ An electrocardiograph is the apparatus used to generate electrocardiograms. The machine functions as a portable set of galvanometers that measure electric potentials at different anatomic sites on the chest and extremities, and contains internal circuitry for computing calculations based on these measurements. Twelve electrodes act as transducers to pick up the electrical signals. Various combinations of signals from the electrodes can be selected for output, each of which provides information about electrical activity in the heart from a different anatomical perspective. For example, electrodes placed on the right arm, left leg and left arm record variations in potential in the frontal plane of the heart. The signals are converted to waveform tracings that are recorded and printed for diagnostic interpretation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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electrocardiogram in Culture
electrocardiogram (EKG) [(i-lek-troh-kahr-dee-uh- gram)]

A written recording of the electrical activity of the heart. Electrocardiograms are used to determine the condition of the heart and to diagnose heart disease.

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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