| Acronym | Meaning |
| IMMA | Ion Microprobe Mass Analysis |
| RDS | Raman Difference Spectroscopy |
| DRO | Diesel-range Organics |
| OSAILS | Optical Sensor Array And Integrated Light Source |
| FIP | Full Intra-pair (spin-coupling) (wave Function) |
| DWBA | Distorted-wave Born Approxn. |
| OEP-SIC | Optimized Effective Potential Self-interaction Correction |
| PMSR | Pairwise-mixing Stirred Reactor |
| SCSA | Small-curvature Semiclassical Adiabatic (approxn. For Mol. Energy Levels) |
| NELC | Non-exclusion Liquid Chromatography |