: magnetic resonance imaging
also : the procedure in which magnetic resonance imaging is used

Examples of MRI in a Sentence

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At the start of the study and again after 12 months, researchers measured their brain's structure using MRI scans and assessed their cardiorespiratory fitness via peak oxygen uptake (VO2peak). Michele Laufik, Martha Stewart, 28 Jan. 2026 The North and Baltic Seas are contaminated with MRI contrast agents. Rafil Kroll-Zaidi, Harpers Magazine, 27 Jan. 2026 Medical imaging, including radiology — X-rays, mammograms, computed tomography, magnetic resonance imaging (MRI) and ultrasound — is a prominent area for AI diagnostic tools. Peter Shen, Baltimore Sun, 26 Jan. 2026 Is that what the Bucks training staff and an MRI say the situation is? Zach Harper, New York Times, 26 Jan. 2026 See All Example Sentences for MRI

Word History

First Known Use

1982, in the meaning defined above

Time Traveler
The first known use of MRI was in 1982

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Cite this Entry

“MRI.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/MRI. Accessed 1 Feb. 2026.

Kids Definition

Medical Definition

: magnetic resonance imaging
also : a procedure in which magnetic resonance imaging is used
Last Updated: - Updated example sentences
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