| Acronym | Meaning |
| CLOD | Concn. Limit Of Detection |
| IOS | Infinite Order Sudden Approximation |
| CBXT | Community-Based Clinical Trial |
| RTG | Radioisotope Thermoelec. Generators |
| CFRP | Carbon Fiber Reinforced Plastic |
| SMART | System Integrated Modular Advanced ReacTor |
| S/MTD | STOL Maneuvering Technology Demonstrator (program) |
| CLS | Classical Least-squares |
| CFEM | Combined Fates And Effects Model |
| NSWMA | National Solid Wastes Management Association |