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[ek-oh-kahr-dee-uh-graf, -grahf] /ˌɛk oʊˈkɑr di əˌgræf, -ˌgrɑf/
noun, Medicine/Medical
an instrument employing reflected ultrasonic waves to examine the structures and functioning of the heart.
Related forms
[ek-oh-kahr-dee-uh-graf-ik] /ˌɛk oʊˌkɑr di əˈgræf ɪk/ (Show IPA),
echocardiographical, adjective
echocardiographically, adverb
[ek-oh-kahr-dee-og-ruh-fee] /ˌɛk oʊˌkɑr diˈɒg rə fi/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for echocardiography


examination of the heart using ultrasound techniques
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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echocardiography in Medicine

echocardiography ech·o·car·di·og·ra·phy (ěk'ō-kär'dē-ŏg'rə-fē)
The use of ultrasound in the diagnosis of cardiovascular lesions and in recording the size, motion, and composition of various cardiac structures. Also called ultrasound cardiography.

ech'o·car'di·o·graph' (-ə-grāf') n.
ech'o·car'di·o·graph'ic adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Encyclopedia Article for echocardiography

diagnostic technique that uses ultrasound (high-frequency sound waves) to produce an image of the internal structures of the heart. A piezoelectric transducer placed on the surface of the chest converts electrical impulses into a narrow ultrasonic beam that penetrates body tissues but is reflected off surfaces where a change in tissue density occurs. The reflected sound waves are detected by a receiver also placed on the chest, transformed back into electrical impulses, and projected on the screen of a cathode-ray oscilloscope. Echoes from varied depths produce an image of the walls and valves of the heart and of their motions. Such information can aid in diagnosing valve disease, congenital heart defects, and other cardiac abnormalities

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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