| Acronym | Meaning |
| ARXPS | Angular Resolved X-ray Photoelectron Spectroscopy |
| ACS | Adiabatically Corrected Sudden |
| RSCF | Relativistic Self-consistent Field |
| SSME | Space Shuttle Main Engine |
| BRS | Biennial Reporting System |
| TMMC | Tetramethylammonium Manganese Trichloride |
| BPL | Bone Phosphate Of Lime (phosphate Content As Calcium Phosphate) |
| SOFIA | Stratospheric Observatory For Infrared Astronomy |
| I AND C | Instrumentation And Control |
| NUCEF | Nuclear Fuel Cycle Safety Engineering Research Facility |