| Abbreviation | Definition |
|---|---|
| MRE | Multi-Row Extended |
| MRF | Markov Random Field |
| MRI | Monomial Representation Idempotent |
| MRPI | Minimal Robustly Positively Invariant |
| MRR | Mean Reciprocal Rank |
| MRSS | Median Ranked Set Sample |
| MRU | Most Recently Used |
| MS | Magic Sum |
| MS | Matrix Scalar |
| MS | Mean Square |
| MS | Most Significant |
| MS | Multi Set |
| MS | Multi-Set |
| MSA | Mathematics and Science Academy |
| MSAM | Master of Science in Applied Mathematics |
| MSB | Mean Square Between .... |
| MSC | Mathematics Subject Classification |
| MSCS | Mathematics Statistics and Computer Science |
| MSD | Mean Squared Displacement |
| MSD | Multiple Space Displacement |