WordReference Random House Learner's Dictionary of American English © 2020
  • Medicinean abbreviation of: magnetic resonance imaging, a technique that produces images of tissues and organs of the body by means of a strong magnetic field and low-energy radio waves.

  • WordReference Random House Unabridged Dictionary of American English © 2020
    MRI, [Med.]
  • Also called  NMR. magnetic resonance imaging: a noninvasive diagnostic procedure employing an MR scanner to obtain detailed sectional images of the internal structure of the body.
  • magnetic resonance imager. See  MR scanner. 

  • Collins Concise English Dictionary © HarperCollins Publishers::
    MRI abbreviation for
    1. magnetic resonance imaging
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