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[toh-muh-graf, -grahf] /ˈtoʊ məˌgræf, -ˌgrɑf/
a machine for making an x-ray of a selected plane of the body.
Origin of tomograph
Related forms
[toh-muh-graf-ik] /ˌtoʊ məˈgræf ɪk/ (Show IPA),
tomographically, adverb
[tuh-mog-ruh-fee] /təˈmɒg rə fi/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for tomography
  • The volcanic plume had previously been imaged using seismic tomography.
  • The team used x-ray technology called computed tomography.
  • Dramatic advances in computed tomography now provide detailed scans in ten scalpel-free seconds.
  • They also contributed to a number of advances in medicine, among them positron-emission tomography, a body-scanning technique.
  • And it is not something you see using magnetic resonance tomography.
  • His cardiologist put him through a bunch of tests, including a computerised tomography scan.
  • Antimatter has even been used as a medical diagnostic tool in positron-emission tomography, which uses positrons to find tumors.
  • The accuracy of the test matches what's possible with low-dose computerized tomography imaging of the lungs.
  • The video was made using an imaging technology called optical-coherence tomography.
  • The video was made using a variation on a technique called optical-coherence tomography.
British Dictionary definitions for tomography


any of a number of techniques used to obtain an X-ray photograph of a selected plane section of the human body or some other solid object
Word Origin
C20: from Greek tomē a cutting + -graphy
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 tomography

1935, from Greek tomos "slice, section" (see tome) + -graphy.

Online Etymology Dictionary, © 2010 Douglas Harper
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tomography in Medicine

tomography to·mog·ra·phy (tō-mŏg'rə-fē)
Any of several techniques for making detailed x-rays of a plane section of a solid object, such as the body, while blurring out the images of other planes. Also called laminagraphy, planigraphy, planography, stratigraphy.

to'mo·graph'ic (tō'mə-grāf'ĭk) adj.

tomograph to·mo·graph (tō'mə-grāf')
The radiographic equipment used in tomography.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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tomography in Science
Any of several radiologic techniques for making detailed three-dimensional images of a plane section of a solid object, such as the body, while blurring out the images of other planes. See also computerized axial tomography, positron emission tomography.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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tomography in Culture
tomography [(tuh-mog-ruh-fee)]

A procedure by which waves are sent through an object and computers produce images of cross sections of the object by using information on how the waves are changed. Both ultrasound and CAT scans are medical uses of this technique, but it is also widely used in science and industry.

The American Heritage® 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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