ra·​di·​ol·​o·​gy | \ˌrā-dē-ˈä-lə-jē \

Definition of radiology 

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 facility includes an imaging center for adult and pediatric patients, radiology and diagnostic labs and a primary care clinic offering services ranging from sick visits to chronic disease management. Jennifer Michelle Greenberg, Houston Chronicle, "Memorial Hermann opens League City care facility," 26 Mar. 2018 The new ownership group plans to build an outpatient facility with an urgent care, a surgery center, a radiology department, a lab, and rooms for multiple medical specialties, said Allied Pacific Chairman Kenneth Sim. Frank Shyong,, "Chinatown's only hospital will reopen as an outpatient clinic," 6 July 2018 Its Medical Brain has unfurled AI systems for radiology, ophthalmology and cardiology. Mark Bergen,, "Google is training machines to predict when a patient will die," 25 June 2018 Nearly every part of the hospital, from radiology to recruitment, was analysed and standardised. The Economist, "Hospitals are learning from industry how to cut medical errors," 28 June 2018 The groom’s mother retired as an assistant professor of radiology at Tufts University Medical School and the chief of ultrasound at Tufts Medical Center, both in Boston. New York Times, "Alana Berman-Gnivecki, Martin Solomon," 17 June 2018 Carreno asked me to send my medical records, which included radiology reports from 2009 and 2011 MRIs on my left shoulder. Scott Tinley,, "A firsthand experience with stem cell treatment in pitching arm," 3 Aug. 2011 Garcia's professors accused him of behaving unprofessionally – including yelling at a radiology technician. CBS News, "Was revenge the motive behind Omaha stabbing deaths?," 2 June 2018 The Associated Press reported that officials at UC Davis Medical Center were forced to reschedule more than 100 cancer exams and 150 radiology exams. Fox News, "Sen. Kamala Harris backs out of commencement speech at US Berkeley," 8 May 2018

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

See More

First Known Use of radiology

1900, in the meaning defined at sense 1

Keep scrolling for more

Learn More about radiology

Statistics for radiology

Last Updated

20 Oct 2018

Look-up Popularity

Time Traveler for radiology

The first known use of radiology was in 1900

See more words from the same year

Keep scrolling for more

More Definitions for radiology



English Language Learners Definition of radiology

medical : a branch of medicine that uses some forms of radiation (such as X-rays) to diagnose and treat diseases


ra·​di·​ol·​o·​gy | \-jē \
plural radiologies

Medical Definition of radiology 

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

Keep scrolling for more

Comments on radiology

What made you want to look up radiology? Please tell us where you read or heard it (including the quote, if possible).


playful or foolish behavior

Get Word of the Day daily email!

Test Your Vocabulary

Autumn Words of the Day 2018

  • a-top-down-image-of-road-through-an-autumn-forest
  • Which is a synonym of fugacious?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!