to·​mog·​ra·​phy | \ tō-ˈmä-grə-fē How to pronounce tomography (audio) \

Definition of tomography

: a method of producing a three-dimensional image of the internal structures of a solid object (such as the human body or the earth) by the observation and recording of the differences in the effects on the passage of waves of energy impinging on those structures — compare computed tomography

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Other Words from tomography

tomographic \ ˌtō-​mə-​ˈgra-​fik How to pronounce tomographic (audio) \ adjective

Examples of tomography in a Sentence

Recent Examples on the Web Light microscopy and tomography scanning allowed the researchers to see Najash in 3D and better understand the early stages of evolution that led to modern snakes. Ashley Strickland, CNN, "Snakes had back legs for 70 million years before losing them, new fossil shows," 20 Nov. 2019 That hypothesis is based on studies in which the pair used positron emission tomography (PET) imaging, which uses radioactive labels to track neurotransmitters, to capture serotonin levels in the brain. Emily Underwood, Science | AAAS, "Brain scans could help personalize treatment for people who are depressed or suicidal," 20 Aug. 2019 The company’s products include imaging devices that combine positron emission tomography with CT scans and ultrasound devices., "A Waltham medical technology firm that makes robots for precision vascular surgery has been bought by the health division of the German conglomerate Siemens for $1.1 billion.," 30 Oct. 2019 Along with the new emergency department, the hospital also saw upgrades to certain corresponding services, including new ultrasound and CT computerized tomography scan suites, both of which are located adjacent to the new building. Steve Schering,, "Rush Oak Park Hospital unveils new $30 million emergency department," 14 Oct. 2019 But imaging has gotten much better since the 1990s, with MRI, positron–emission tomography (PET) and CT scans able to detect tumors as small as a few millimeters. Kate Pickert, Time, "Why the Women Most Likely to Die of Breast Cancer Have Gotten the Least Attention," 1 Oct. 2019 When the year was up, the researchers returned, fished up the seismometers and uploaded the data, which allowed them to create a tomography, or layout, of the plate. Laura Geggel, Scientific American, "We Could Be Witnessing the Death of a Tectonic Plate," 8 Aug. 2019 Researchers are able to build a 3D model of some of the subducted crust through seismic tomography. Gemma Tarlach, Discover Magazine, "Plate Tectonics: The Slow Dance of Our Planet's Crust," 12 June 2019 In a paper published in the May 2019 issue of Medical Image Analysis, MSK investigators, led by medical physics researcher Ida Häggström, detail a new method of image reconstruction for positron emission tomography, or PET . Julie Grisham, Scientific American, "Faster, clearer PET images offer new views on disease," 9 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tomography.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of tomography

1935, in the meaning defined above

History and Etymology for tomography

Greek tomos section + International Scientific Vocabulary -graphy — more at tome

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Time Traveler for tomography

Time Traveler

The first known use of tomography was in 1935

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Statistics for tomography

Last Updated

3 Dec 2019

Cite this Entry

“Tomography.” The Dictionary, Merriam-Webster Inc., Accessed 5 December 2019.

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More Definitions for tomography


to·​mog·​ra·​phy | \ tō-ˈmäg-rə-fē How to pronounce tomography (audio) \
plural tomographies

Medical Definition of tomography

: a method of producing a three-dimensional image of the internal structures of a solid object (as the human body) by the observation and recording of the differences in the effects on the passage of waves of energy impinging on those structures

called also stratigraphy

— see computed tomography, positron-emission tomography

Other Words from tomography

tomographic \ ˌtō-​mə-​ˈgraf-​ik How to pronounce tomographic (audio) \ adjective

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More from Merriam-Webster on tomography

Rhyming Dictionary: Words that rhyme with tomography

Britannica English: Translation of tomography for Arabic Speakers Encyclopedia article about tomography

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