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 tomography (audio) \ adjective

Examples of tomography in a Sentence

Recent Examples on the Web The devices—used for CT scans, MRIs, X-Rays, mammograms, ultrasounds, and positron emission tomography—use a default password to receive regular maintenance. Dan Goodin, Ars Technica, "GE puts default password in radiology devices, leaving healthcare networks exposed," 8 Dec. 2020 Researchers first placed the remains in a computerized tomography scanner, which has been used in the past to peer beneath mummy bandages. Colin Barras, Science | AAAS, "Atom smasher unearths surprises hidden with 2000-year-old mummy," 24 Nov. 2020 To diagnose pancreatic cancer, a doctor might conduct imaging tests like ultrasounds, computerized tomography (CT) scans, or magnetic resonance imaging (MRI), according to the Mayo Clinic. Hannah Dylan Pasternak, SELF, "‘Jeopardy!’ Host Alex Trebek Died Nearly 2 Years After Revealing His Pancreatic Cancer Diagnosis," 9 Nov. 2020 During the 1990s, Maguire and colleagues were among the first to use a certain kind of brain scan, positron emission tomography, on people who stutter. Amber Dance Knowable Magazine, Smithsonian Magazine, "What Neuroscientists Are Discovering About Stuttering," 4 Sep. 2020 Computerized tomography of the fossil, found in Libya, revealed a slight bump in the middle of the snout—a feature of modern American crocodiles but not their African counterparts. Scott Hershberger, Scientific American, "In Case You Missed It," 14 Sep. 2020 The team used a detailed scanning process called micro-computerized tomography (CT) to better understand how the animals were mummified, conditions in which they were kept, possible causes of death and the handling damage mummies sustained. Claire Bugos, Smithsonian Magazine, "Scientists ‘Digitally Unwrap’ Ancient Egyptian Animal Mummies," 22 Aug. 2020 Scientists, including paleontologists, pathologists, a surgeon, and a radiologist, examined the full fossil with high-resolution computerized tomography scans and examined thin sections under the microscope to evaluate the structure of the cells. Gretchen Vogel, Science | AAAS, "Doctors diagnose advanced cancer—in a dinosaur," 3 Aug. 2020 Since the 1970s, geologists have used seismic tomography to piece together what Earth's interior looks like. Jennifer Leman, Popular Mechanics, "What Are These Enormous Blobs 1,800 Miles Beneath Our Feet?," 16 June 2020

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

Cite this Entry

“Tomography.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2021.

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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 tomography (audio) \ adjective

More from Merriam-Webster on tomography

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

Comments on tomography

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