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

Examples of MRI in a Sentence

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Lopez rushed her back to the emergency room, where an MRI revealed a diagnosis of transverse myelitis, a rare inflammatory disorder affecting the spinal cord. Leondra Head, CBS News, 8 Jan. 2026 He is expected to have an MRI on Sunday. Janis Carr, Oc Register, 4 Jan. 2026 The researchers analyzed more than 61,000 MRI scans from a large UK health database to better understand the muscle’s structure. Angelica Stabile, FOXNews.com, 3 Jan. 2026 Seeing robots live inside To overcome these challenges, the researchers developed a multi-frequency dual-echo (MFDE) MRI sequence that reduces repetition time to just 30 milliseconds. Neetika Walter, Interesting Engineering, 1 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 11 Jan. 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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