| Acronym | Meaning |
| CFP | Coefficient Of Fractional Parentage (method In Quantum Calcns.) |
| DFA | Discriminant Function Analysispar |
| BMDL | Below Method Detection Level |
| HAM | Hydrogenic Atoms In Molecules |
| OA | Office Of The Administrator |
| MCEB | Multiconfiguration Energy Bound |
| NRDA | Natural Resource Damage Assessment |
| SETOC | International Sediment Exchange For Tests On Organic Contaminants |
| UMO | Unmodified Molecular Orbital |
| TRK | Tyrosine Kinase |