: the action or process of using specialized techniques (such as ultrasound, tomography, or radiography) to produce an image of something that is not visible to the naked eye (such as internal bodily organs or the Earth's subsurface)
Brain imaging of patients with vascular dementia typically show small strokes or poor blood supply deep in the brain, at the natural terminal … of the blood vessel.—
Renee Meyer
Renee MeyerBuried under sand, the layout of a city some 4,000 years old has been revealed before anyone lifted a trowel. To build the map of [the city], … archaeologists used geomagnetic imaging, which measures Earth's magnetic force.—National Geographic
—often used before another nounNational Geographicimaging equipment
a thermal imaging camera
A computed tomography scan … is an imaging test that lets doctors see inside a person's body.—NBCNews.com
see also magnetic resonance imaging
NBCNews.comimaging
2 of 2present participle of image
Examples of imaging in a Sentence
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Tereza Pultarova, Space.com, 17 Oct. 2025
Banks will discuss how hormones and inflammation may influence Alzheimer’s risk; why women are disproportionately affected; the role of genetics and brain imaging in unlocking answers and lifestyle choices that may help protect memory and cognition.
—Linda McIntosh, San Diego Union-Tribune, 16 Oct. 2025
That means no forward-facing sonar or side imaging.
—Alex Robinson, Outdoor Life, 16 Oct. 2025
The researchers used microscopy, live-cell imaging, protein analysis (proteomics), and viral infection models to study how FOOD forms and behaves.
—New Atlas, 16 Oct. 2025
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Noun
Although the new commercial space ethos of building satellites fast and cheap has dominated Earth imaging from space for years, deep-space astronomy has so far been headed mostly in the opposite direction — trending toward more complex machines worth billions of dollars.
—Tereza Pultarova, Space.com, 17 Oct. 2025
Banks will discuss how hormones and inflammation may influence Alzheimer’s risk; why women are disproportionately affected; the role of genetics and brain imaging in unlocking answers and lifestyle choices that may help protect memory and cognition.
—Linda McIntosh, San Diego Union-Tribune, 16 Oct. 2025
That means no forward-facing sonar or side imaging.
—Alex Robinson, Outdoor Life, 16 Oct. 2025
The researchers used microscopy, live-cell imaging, protein analysis (proteomics), and viral infection models to study how FOOD forms and behaves.
—New Atlas, 16 Oct. 2025
See All Example Sentences for imaging
Cite this Entry
“Imaging.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/imaging. Accessed 23 Oct. 2025.
Copy CitationMedical Definition
imaging
noun
: the action or process of using specialized techniques (such as ultrasound, tomography, or radiography) to produce an image especially of an internal body part or organ
advances in clinical diagnostic imaging
Brain imaging has identified numerous regions of altered structure or activity in the brain during major depression, suggesting disordered neurocircuitry in a variety of structures …—J. John Mann, The New England Journal of Medicine
—often used before another nounJ. John Mann, The New England Journal of Medicineimaging modalities
The advent of rapid imaging techniques has made magnetic resonance angiography (MRA) an attractive technology in the evaluation of pulmonary vascular disorders.—Eric G. Honig et al., Scientific American Medical Bulletin
see also magnetic resonance imaging
Eric G. Honig et al., Scientific American Medical BulletinLove words? Need even more definitions?
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