| Acronym | Meaning |
| PRDA | Program Research And Development Announcement |
| BRS | Biennial Reporting System |
| OSBP | Oxysterol-binding Protein |
| DNO | Delocalized Natural Orbital |
| FFV | Flexible Fuel Vehicle |
| MAREMF | MARtian Electrons And Magnetic Field |
| X-SAR | X-Band Synthetic Aperture Radar |
| MBPT | Many-body Perturbation Theory |
| LLRW | Low Level Radioactive Waste |
| NRC | Nuclear Regulatory Commission |