| Acronym | Meaning |
| NADP | National Atmospheric Deposition Program |
| QDO | Quantum-defect Orbital (theory) |
| CRL | Certified Reporting Limit |
| QCDL | Quenched Cavity Dye Laser |
| OSIRIS | Oxford Supersensitive Injector For Radioactive Isotope Separation |
| MDSC | Modulated Differential Scanning Calorimetry |
| SSGF | Self-consistent Surface Green Function |
| EMA | Effective Medium Approximation |
| LSDX | Local-spin-density (with Exact) Exchange |
| EBA | Exponentiated Born Approximation |