| Acronym | Meaning |
| IMDL | Interlaboratory Method Detection Limits |
| MVEG | Motor Vehicle Emissions Group |
| QDO | Quantum-defect Orbital (theory) |
| ESRF | European Synchrotron Radiation Facility |
| CMP | Cytidine 5'-monophosphate |
| RS-HFPT | Rayleigh-Schroedinger Hartree-Fock Perturbation Theory |
| CVO | Canonical Virtual Orbital |
| ARIAP | Acid Rain Impact Assessment Program |
| ALMS | Atomic Line Molecular Spectroscopy |
| PIRANHA | Pesticide And Industrial Chemical Risk Analysis And Hazard Assessment |