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radiologist

American  
[ray-dee-ahl-uh-jist] / ˌreɪ diˈɑl ə dʒɪst /

noun

  • radiologists
    plural
  1. a specialist in medical radiology.


Other Word Forms

Noun Inflected Forms

Explanation

A radiologist is a doctor who detects and treats conditions using medical imaging, like x-ray machines. If you think you've broken your arm after a fall at the roller rink, you may need to see a radiologist. A radiologist can x-ray your arm or leg and get a picture of the bones inside. Other tools available to radiologists include CT scans, MRIs, and ultrasound. These are all imaging techniques, and the word radiologist comes from the radiation that x-rays and CT scans use to create an image (from the Latin radiationem, "a shining"). Instead of radiation, ultrasounds use sound waves and MRIs use magnetic fields and radio waves.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The temperature read 36C but the radiologist, from the southern Indian state of Tamil Nadu, said it felt hotter.

From Barron's Jun. 30, 2026

Nisha Mehta, a radiologist and founder of the Physician Side Gigs community, was impressed and cautiously optimistic about Midjourney’s imaging capabilities.

From MarketWatch Jun. 18, 2026

During the procedure, an interventional radiologist uses a thin catheter to reach the affected blood vessels and injects tiny particles that block blood flow to them.

From Science Daily Jun. 17, 2026

Instead, the radiologist missed it as a result of being so focused on the lump in the left breast.

From The Wall Street Journal May 4, 2026

In fact, it was her radiologist who was potentially at fault.

From "Blink" by Malcolm Gladwell

Several radiologists tell her they wouldn’t want to work without AI assistance.

From The Wall Street Journal May 8, 2026

“Some occupations regularly cast as AI’s early victims are on a tear. America has 7% more software developers, 10% more radiologists and 21% more paralegals than three years ago.”

From The Wall Street Journal Apr. 21, 2026

For the RoentGen-generated chest X-rays, radiologists achieved accuracy rates between 62% and 78%, while the AI models ranged from 52% to 89%.

From Science Daily Mar. 26, 2026

Two radiologists are required to read every mammogram, and patients are called back in for further tests where there is any dubiety - but still, 20% of cancers are missed.

From BBC Mar. 20, 2026

The next afternoon Serena called me and said that a top group of radiologists, pediatricians, and cancer doctors had just spent an hour studying John’s X-rays, bone scans, and CT scans.

From "Mountains Beyond Mountains" by Tracy Kidder and Michael French

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