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

The two-year contract for nurses and the three-year contract for radiology technicians at the Oakland County hospital were approved this week by members of Local 40, Office & Professional Employees International Union. —Paula Wethington, CBS News, 19 Dec. 2025

In most cases, people who experience myocarditis recover quickly and restore full heart function, according to study author Joseph Wu, MD, PhD, the director of the Stanford Cardiovascular Institute and a professor of medicine and radiology. —Melissa Rudy, FOXNews.com, 17 Dec. 2025

In radiology, for example, an agent trained on the expertise of multiple doctors could catch tumors in dense tissue that a single radiologist might miss. —Amanda Gerut, Fortune, 11 Dec. 2025

Others stressed that true progress is slow, and that radiology’s period of trial and error offers a preview of how AI will mature in any specialty. —Alexis Kayser, MSNBC Newsweek, 4 Dec. 2025

Word History

First Known Use

1900, in the meaning defined at sense 1

Rhymes for radiology

• aetiology
• anthropology
• archaeology
• archeology
• audiology
• cardiology
• climatology
• cohomology
• cosmetology
• criminology
• demonology
• dermatology

Kids 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

-ə-ˈläj-i-kəl

adjective

or radiologic

-ik

radiologist

-ˈäl-ə-jist

noun

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