| Acronym | Meaning |
 | PAC | Pan Africanist Congress -Partial Solar Calibrator - Patriot Advanced Capabilities - Political Action Committee -Primary Auditory Cortex |
| SDC | Shaft Driven Compressor - U.S. Army Strategic Defense Command (1985?1992) |
| MA | Megaannum |
| EBE | Extraterrestrial Biological Entity |
| MSL | Mars Science Laboratory - Mean Sea Level -Missile |
| HGC | UK Human Genetics Commission |
| SAAFR | Standard Use Army Aircraft Flight Route (safer) |
| SREL | Savannah River Ecology Laboratory |
| AMFRS | Advanced Multi-Function Radio Frequency System - Automatic Multisensor Feature-based Recognition System |
| USTRANSCOM | United States Transportation Command |
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