| Acronym | Meaning |
| OSL | Open Source License - Optically Stimulated Luminescence - Orbiting Solar Laboratory |
| MM | Megametre |
| MMPR | Mighty Morphin Power Rangers |
| USD(A&T) | (U.S.) Under-Secretary Of Defense (Acquisition And Technology) |
| KSI | Killed Or Seriously Injured |
| CES | Czech Language (ISO 639-2 Code) |
| GMFSC | Ground Mobile Forces Satellite Communications |
| PS | Picosiemens |
| TJD | Truncated Julian Day |
| ORISE | Oak Ridge Institute For Science And Education |