| Acronym | Meaning |
| SOCAB | South Coast Air Basin |
| ACP | Approximate Coupled-pair (method For Correlation-energy Calcn.) |
| C4S | Chemical Shift-specific Slice Section |
| BTS | British Toxicology Society |
| XSAD | X-ray Small Angle Diffraction |
| DOE | Department Of Energy |
| PCA | Procoagulant Activity |
| TCSPC | Time-correlated Single-photon Counting |
| ISC-PEM-MO | Iterative Self-consistent Partition Of Energy Method And MO Formalism |
| NWC | National Water Council (UK) |