| Acronym | Meaning |
| CDA | Conceptual Design Activity |
| ARM | Area Radiation Monitoring |
| HSDI | High-speed Direct Injection (of Diesel Engines) |
| MBE | Molecular Beam Epitaxy |
| GVDW | Generalized Van Der Waals (a Free-energy D.-functional Theory) |
| EXSY | Exchange Spectroscopy |
| SEL | Stacked Elemental Layer (vapor Deposition Technique) |
| QCL | Quantum Cascade Laser |
| SCA | Standing Committee Of Analysts [probably Of EC] |
| NESDIS | National Environmental Satellite |