| Acronym | Meaning |
| CELS | Characteristic Energy Loss Spectroscopy |
| ESTN | Electron Spin Transient Nutation |
| RPD | Retarding Potential Difference |
| CARRI | Computerized Assessment Of Relative Risk Impacts |
| TAD | Thermophilic Aerobic Digestion (of Sewage Sludge) |
| FLDA | Fuzzy Linear Discriminant Analysis |
| REP | Rotating Electrode Process |
| BIA | Batch Injection Analysis |
| QXRD | Quantitative X-ray Diffraction |
| NTD | Neutron Transmutation Doping |