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magnetic resonance imaging

American  

noun

  1. MRI.


magnetic resonance imaging British  

noun

  1.  MRI.  a noninvasive medical diagnostic technique in which the absorption and transmission of high-frequency radio waves are analysed as they irradiate the hydrogen atoms in water molecules and other tissue components placed in a strong magnetic field. This computerized analysis provides a powerful aid to the diagnosis and treatment planning of many diseases, including cancer

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

magnetic resonance imaging Scientific  
  1. See MRI


magnetic resonance imaging Cultural  
  1. A technique for forming detailed images of internal organs and tissue. It works by putting the patient inside a magnet, then using radio waves to locate atoms in the tissue. Final production of the image is done by a computer. (Compare x-ray and ultrasound.)


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MRI images are the most detailed that can be obtained.

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.

Their work investigates whether artificial intelligence applied to magnetic resonance imaging can reliably indicate whether chemotherapy patients have a DNA modification associated with treatment outcomes and survival.

From Science Daily • Nov. 18, 2025

Bruni-Lowe also highlights a growing interest in neuroscience, and the use of tools such as functional magnetic resonance imaging, which measures brain activity by detecting changes in blood flow.

From BBC • Jul. 10, 2025

In a seemingly contradictory finding, research that used functional magnetic resonance imaging, or fMRI, to study brain responses to disgusting humor did not find a pattern of brain activity that was distinct from plain disgust.

From Salon • Oct. 6, 2024

Van Horn said there's been a lot of work done with functional magnetic resonance imaging, looking at blood oxygen related signal changes in autistic individuals, but this research, he said "Goes a little bit deeper."

From Science Daily • Apr. 17, 2024

Instead of a boxy belt-fed device using a stack of gray trays, the futuristic-looking baggage and personal belongings inspection system looks like a scaled-down starship medical magnetic resonance imaging machine.

From Seattle Times • Mar. 6, 2024

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