| Acronym | Meaning |
| WERL | Water Engineering Research Laboratory |
| TMMC | Tetramethylammonium Manganese Trichloride |
| DECSY | Double-quantum Coherence Echo Correlated Spectroscopy |
| APR | Air-Purifying Respirator |
| PNN | Probabilistic Neural Network |
| HMW | High Molecular Weight |
| SCLR | Single Configuration Linear Response (theory) |
| SCC-IEH | Self-consistent Charge-iterative Extended Hueckel |
| CASE | Computer Aided Software Engineering |
| LFCC | Laboratory-frame Close-coupling (for Electron-mol. Scattering) |