| Acronym | Meaning |
| VE-PPP | Variable Electronegativity PPP |
| VSQG | Very Small Quantity Generator |
| EBI | Equivalent Background Illumination |
| NLDFT | Nonlocal Density Functional Theory |
| CP | Cellulose Propionate |
| SMSI | Strong Metal-support Interaction |
| HOPC | High Osmotic Pressure Chromatography |
| DXRD | Dynamic X-ray Diffraction |
| GCA | Generator Coordinate Approxn. |
| EPA | Environment Potential Approach (in Electronic-structure Calcn.) |