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cardiograph

Definitions

  • WordNet 3.6
    • n cardiograph a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles
    • n cardiograph medical instrument that records electric currents associated with contractions of the heart
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Webster's Revised Unabridged Dictionary
    • n cardiograph (Med) An instrument which, when placed in contact with the chest, will register graphically the comparative duration and intensity of the heart's movements.
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Century Dictionary and Cyclopedia
    • n cardiograph In physiology, an apparatus for recording by a tracing the movements of the heart. It consists essentially of a device (as a hollow cup containing a spring pressed against the chest) for producing in an elastic diaphragm vibrations which correspond to the movements of the heart, these vibrations being recorded by means of a lever in a tracing upon a revolving cylinder. It was invented by Marey; in his original experiments he introduced hollow sounds ending in elastic ampullæ into the auricles and ventricles of the heart of a horse.
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Chambers's Twentieth Century Dictionary
    • Cardiograph an apparatus for recording by a tracing—Car′diogram—the movements of the heart
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Etymology

Webster's Revised Unabridged Dictionary
Gr. kardi`a heart + -graph,
Chambers's Twentieth Century Dictionary
L.—Gr. kardiakoskardia, the heart.

Usage

In literature:

The action of the heart may be very accurately observed by means of the electric cardiograph.
"The New Gresham Encyclopedia" by Various
Cardiographic tracings showed merely a simple tachycardia.
"Scurvy Past and Present" by Alfred Fabian Hess
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In news:

PREVIOUS RESEARCH TACKLED the extraction of electro- cardiograph (ECG) like waveform signals from a microwave- cardiograph (MCG).
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