| BMI | Body Mass Index [engl.] Menschliche Gewichtsbeurteilung nach Körpergrösse |
| ASB | associated body |
| TBS | The Body Shop Düsseldorf, http://www.loreal.de |
| HCB | Hard Convex Body |
| BIW | Body in White [engl.] Einwandfreie Karosserie im Automobilbau |
| BO | Body Odor [engl.] Körpergeruch |
| PAB | Policy Advisory Body [Internet] |
| BAN | Body Area Network [engl.] |
| BBT | Basal Body Temperature [engl.] Normale Körpertemperatur |
| CAB | Conformity Assessment Body [engl.] Zertifizierungsstelle für MRAs |
| DMBE | Double Many-Body Expansion [Methode] |
| P2 | Interpersonal Messaging Protocol [for heading and body] |
| BCC | Body Centered Cubic [crystallography] [engl.] |
| btps | Body Temperature and Pressure, Saturated [37 deg C, 1 atm = 1013 hPa, steam saturated] |
| MAD | Mass Air Delivery |
| MAS | Mass Announcement System |
| MSD | Mass Spectrometric Detector |
| KMAL | Kinetic Mass Action Law |
| EMT | Effective-Mass-Theory |
| IMMA | Ion Microprobe Mass Analysis |
| ESMS | Electrospray Mass Spectrometry |
| LRMS | Low-Resolution Mass Spectrometry |
| MSD | Mass Storage Device |
| MSP | Mass Storage Pedestal |
| MSS | Mass Storage [Sub-]System |
| WMD | Weapons of Mass Destruction |
| MASS | Mass Storage System |
| MTL | Mass Transport Limited |
| IMAS | Integrated Mass Announcement System |
| ERMS | Energy-Resolved Mass Spectra |
| HRMS | High Resolution Mass Spectrometry |
| HPMS | High Pressure Mass Spectrometry |
| U | unified atomic mass unit |
| FT-MS | Fourier Transform Mass Spectrometry |
| FIMS | Field Ionization Mass Spectrometry |
| UMPA | Universal MicroProbe mass Analyzer |
| TQMS | Triple Quadrupole Mass Spectrometry |
| NTI | Negative Thermionic mass spectrometry |
| MTA | Mass spectroscopic Thermal Analysis |
| MSCV | Mass Spectrometric Cyclic Voltammogram |
| MSCP | Mass Storage Control Protocol |
| mims | Membrane Inlet Mass Spectrometry |
| MIKE | Mass-analyzed Ion Kinetic Energy |
| NRMS | Neutralization Reionization Mass Spectrometry |
| pams | Precision Abrasion Mass Spectrometry |
| IRMS | Isotope Ratio Mass Spectrometry |
| RIMS | Resonance Ionization Mass Spectroscopy |
| INMS | Ionized Neutral Mass Spectrometry |
| ECMS | Electron-Capture Mass Spectrometry |
| AMU | Atomic Mass Unit [engl.] Atommasseneinheit |