| Acronym | Meaning |
| HLG | Hedin-Lundqvist-Gunnarsson (spin D. Functional) |
| XCC | Expectation-value Coupled-cluster (in Correlation Energies And Electronic Properties Of Many-electron Systems Calcns.) |
| GEMI | Global Environmental Management Initiative |
| CPQRA | Chemical Process Quantitative Risk Assessment |
| HOPC | High Osmotic Pressure Chromatography |
| LKKR | Layer Korringa-Kohn-Rostoker (in Interface Electronic Structures) |
| NMI | Nautical Miles |
| DEGMBE | Diethylene Glycol Mono-n-Bu Ether |
| APF | Advanced Particle Filter |
| GALEX | Galaxy Evolution Explorer |