| Acronym | Meaning |
| SCOD | Soluble Chemical Oxygen Demand |
| UKAWRG | United Kingdom Acid Waters Review Group |
| SIC | Std. Industrial Code |
| SCDM | Self-consistent Diagrammatic Method (in Calcn. On Electronic Excitation Transfer) |
| CRF | Corticotropin-releasing Factor |
| ELFSE | End-labeled Free-solution Electrophoresis |
| BPD | Bronchopulmonary Dysplasia |
| DFZ | Dislocation Free Zone |
| EC | European Community |
| ACRR | Annular Core Research Reactor |