| Acronym | Definition |
|---|
| MBSS | Maryland Biological Stream Survey (Maryland Department of Natural Resources) |
| MBSS | Mathematically Beautiful Screen Savers |
| MBSS | Modified Barium Swallow Study |
| MBSS | Miller Behavioral Style Scale |
| MBSS | Minimum Baseline Security Standard (computer security) |
| MBSS | Maritime Ballistic Survival System (body armor) |
| MBSS | Model-Based Statistical Sampling (load research) |
| MBSS | Multibeam Sonar System |
| MBSS | Main Battery Selector Switch (to select banks of batteries on a boat) |
| MBSS | Myoko Backcountry Ski School |
| MBSS | Mobile Remote Service Base System (National Aeronautics and Space Administration) |
| MBSS | meter below sea surface (unit to measure the sea level in ice ages) |