radiology
noun
ra·di·ol·o·gy
ˌrā-dē-ˈä-lə-jē 
1
: a branch of medicine concerned with the use of radiant energy (such as X-rays) or radioactive material in the diagnosis and treatment of disease
2
: the science of radioactive substances and high-energy radiations
Examples of radiology in a Sentence
Recent Examples on the Web
Important risk factors for developing an additional cancer later on in life include the cancer treatment the person received (chemotherapy, radiology, and/or hormone therapy) and age of initial cancer diagnosis.
—
Tesfaye Negussie, ABC News, 13 Apr. 2026
In May 2024, a cyberattack paralyzed many of the organization’s digital resources, affecting electronic medical records systems, prescriptions and refills, credit card payments, processing of electronic lab and radiology orders and access to its patient portal online.
—Paul Sisson, San Diego Union-Tribune, 9 Apr. 2026
On the same day her application was denied, Shokri Varniab matched into a six-year diagnostic radiology research track residency — two years after first applying for the green card.
—Michal Ruprecht, CNN Money, 7 Apr. 2026
The importance of preventive medicine has grown, and the field of medicine has become increasingly specialized as medical disciplines and branches such as endocrinology, immunology, psychiatry, radiology, epidemiology, and nanomedicine have emerged.
—Encyclopedia Britannica, 2 Apr. 2026
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Tesfaye Negussie, ABC News, 13 Apr. 2026
In May 2024, a cyberattack paralyzed many of the organization’s digital resources, affecting electronic medical records systems, prescriptions and refills, credit card payments, processing of electronic lab and radiology orders and access to its patient portal online.
—Paul Sisson, San Diego Union-Tribune, 9 Apr. 2026
On the same day her application was denied, Shokri Varniab matched into a six-year diagnostic radiology research track residency — two years after first applying for the green card.
—Michal Ruprecht, CNN Money, 7 Apr. 2026
The importance of preventive medicine has grown, and the field of medicine has become increasingly specialized as medical disciplines and branches such as endocrinology, immunology, psychiatry, radiology, epidemiology, and nanomedicine have emerged.
—Encyclopedia Britannica, 2 Apr. 2026
See All Example Sentences for radiology
Cite this Entry
“Radiology.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/radiology. Accessed 17 Apr. 2026.
Copy CitationKids Definition
radiology
noun
ra·di·ol·o·gy
ˌrād-ē-ˈäl-ə-jə̄
: a branch of medicine concerned with the use of radiant energy (as X-rays) or radioactive material in the diagnosis and treatment of disease
radiological
adjective
-ə-ˈläj-i-kəl
or radiologic
-ik
radiologist
noun
-ˈäl-ə-jist
Medical Definition
radiology
noun
ra·di·ol·o·gy
-jē
plural radiologies
1
: the science of radioactive substances and high-energy radiations
2
: a branch of medicine concerned with the use of radiant energy (as X-rays or ultrasound) in the diagnosis and treatment of disease
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