| Abbreviation | Definition |
|---|---|
| MRMP | Magnetic Resonance Materials in Physics |
| MRO | medium-range order |
| MRPI | Magnetic Resonance Perfusion Imaging |
| MRR | Metric Reaming Rate |
| MRSE | Manifest Refractive Spherical Equivalent |
| MRSM | Multi Resolution Spatial Model |
| MRSM | Multiple Response Surface Modeling |
| MS | Meta Stable |
| MS | Microphotography Standard |
| MS | MilliSeconds |
| MS | Multi State |
| MS | mass spectrometry |
| MS | Mean Squared |
| MS/MS | tandem mass spectrometry |
| MSA | Meridian Stress Assessment |
| MSA | Multiple Shear Angle |
| MSC | Multiple Scatter Correction |
| MSD | Mean Squared Distance |
| MSDB | Magnetically Stabilized Fluidized Bed |
| MSIS | Mass Spectrometer and Incoherent Scatter |