| Abbreviation | Definition |
|---|---|
| MBBCH | Medicinae Baccalaureus, Baccalaureus Chirurgiae |
| MCLA | Mexico Caribbean and Latin America |
| MHV | Maximal Helicity Violating |
| MHV | Maximally Helicity Violating |
| MI | Militia Immaculatae |
| MIP | Multum In Parvo |
| MLHS | Modified Latin Hypercube Sampling |
| MP | Modus Ponens |
| MSV | Maiestas Sacra Vestra |
| MT | Modus Tollens |
| MTPP | M Transversus Perinei Profundus |
| NALA | Nevada Association of Latin Americans |
| NALAS | Norwegian Association of Latin America Studies |
| NALAS | Norwegian Association of Latin American Studies |
| NB | Nota Bene |
| NB | Nota Benia |
| NB | Nota Bien |
| NCC | Noleggio Con Conducente |
| NCDP | Non Catalytic Displacement Plating |
| NDCL | Notre Dame-Cathedral Latin |