| Abbreviation | Definition |
|---|---|
| MS | Morphine Sulphate |
| MSCE | Materials Science and Chemical Engineering |
| MSD | Mean Square Displacement |
| MSI | Molecular Simulations, Inc. |
| MSL | Maximum Segment Length |
| MSLC | Multi Stable Liquid Crystal |
| MSM | Methyl Sulfonyl Methane |
| MSNs | mesoporous silica nanoparticles |
| MST | Miertus Scrocco Tomasi |
| Mt | Meitnerium |
| MT | Metal Treatment |
| MTAP | Methylthioadenosine phosphorylase |
| MTBE | Methyl Tertiary Butyl Ethyl |
| MTC | Manual Temperature Compensation |
| MTD | Mixture Transition Distribution |
| MTFM | My Town's Favorite Molecule |
| MTFT | Multiple-Tube Fermentation Technique |
| MTMS | Materials Transformation Machining Show |
| MTMS | Materials Transformation & Machining Show |
| MTMS | Materials Transformation and Machining Show |