| MAD | Mass Air Delivery |
| EMT | Effective-Mass-Theory |
| MSD | Mass Storage Device |
| MSD | Mass Spectrometric Detector |
| ESMS | Electrospray Mass Spectrometry |
| MASS | Mass Storage System |
| MAS | Mass Announcement System |
| LRMS | Low-Resolution Mass Spectrometry |
| IMMA | Ion Microprobe Mass Analysis |
| MSP | Mass Storage Pedestal |
| MSS | Mass Storage [Sub-]System |
| WMD | Weapons of Mass Destruction |
| KMAL | Kinetic Mass Action Law |
| MTL | Mass Transport Limited |
| NRMS | Neutralization Reionization Mass Spectrometry |
| MTA | Mass spectroscopic Thermal Analysis |
| UMPA | Universal MicroProbe mass Analyzer |
| U | unified atomic mass unit |
| TQMS | Triple Quadrupole Mass Spectrometry |
| RIMS | Resonance Ionization Mass Spectroscopy |
| MIKE | Mass-analyzed Ion Kinetic Energy |
| MSCP | Mass Storage Control Protocol |
| MSCV | Mass Spectrometric Cyclic Voltammogram |
| NTI | Negative Thermionic mass spectrometry |
| pams | Precision Abrasion Mass Spectrometry |
| IRMS | Isotope Ratio Mass Spectrometry |
| EIMS | Electron Impact Mass Spectrometry |
| EHMS | Electro Hydrodynamic Mass Spectrometry |
| ECMS | Electron-Capture Mass Spectrometry |
| cams | Collisional Activation Mass Spectrum |
| BMI | Body Mass Index [engl.] Menschliche Gewichtsbeurteilung nach Körpergrösse |
| BMD | Bone Mass Density [engl.] Knochendichte beim menschlichen Körper |
| AMU | Atomic Mass Unit [engl.] Atommasseneinheit |
| AMN | Atomic Mass Number [engl.] Atom-Massenzahl |
| a.m.u. | atomic mass unit [engl.] Atom-Masseneinheit |
| ERMS | Energy-Resolved Mass Spectra |
| FIMS | Field Ionization Mass Spectrometry |
| FT-MS | Fourier Transform Mass Spectrometry |
| INMS | Ionized Neutral Mass Spectrometry |
| HPMS | High Pressure Mass Spectrometry |
| IMAS | Integrated Mass Announcement System |
| HRMS | High Resolution Mass Spectrometry |
| mims | Membrane Inlet Mass Spectrometry |
| TSQ | Triple State Quadrupole mass spectrometry |
| IDMS | Isotope Dilution analyses with Mass Spectrometry |
| PFMS | Pyrolysis Field ionization Mass Spectrometry |
| C/S | Charge Stripping [mass spectrometry] [engl.] |
| CIIR | Center for Intelligent Information Retrieval, Mass. |
| EA-MS | Electron Attachment [association] Mass Spectroscopy |
| PMS | Pulsed [time-of-flight] Mass Spectrometer |