| Acronym | Meaning |
| ERPG | Emergency Response Planning Guidelines |
| ZPC | Zero-point (energy) Corrections |
| QDVPT | Quasidegenerate Variational Perturbation Theory |
| VCI | Variational Configuration Interaction (quantum Calcn. Method) |
| ETS | Electron Transmission Spectroscopy |
| XEAPS | X-ray Excited Electron Appearance Potential Spectroscopy |
| CCS | Cold Cranking Simulator |
| SPR | Surface Plasmon Resonance |
| MASER | Microwave Amplification By Stimulated Emission Of Radiation |
| RAPIDS | Regional Air Pollutant Inventory Development System |