noun Medicine/Medical.

the graphic record produced by an electrocardiograph. Abbreviation: EKG, ECG

Origin of electrocardiogram

First recorded in 1900–05; electro- + cardiogram
Also called cardiogram.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for electrocardiogram

Contemporary Examples of electrocardiogram

Historical Examples of electrocardiogram

  • 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 disordersAbbreviation: 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

Word Origin and History for electrocardiogram

1904, from electro- + cardiogram.

Online Etymology Dictionary, © 2010 Douglas Harper

electrocardiogram in Medicine




The curve traced by an electrocardiograph.cardiogram
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

electrocardiogram in Culture


[(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 Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.