| Acronym | Meaning |
| DZD | (double Zeta)-diffuse (basis Set In Configuration-mixing MO Calcns. On Mols.) |
| HIBA | 2-hydroxyisobutyric Acid |
| BSR | Bottom Simulating Reflection |
| IAM | Internal Axis Method (in Calcns. Of Rotational Excitation In Atom-mol. Collisions) |
| CMS | Complete Model Space (in Many-body Calcns.) |
| MBH | Mediobasal Hypothalamus |
| HWDU | Hazardous Waste Disposal Unit |
| EGSB | Expanded Granular Sludge Bed |
| APT | Accelerator Production Of Tritium |
| CFFE | Continuous Free Flow Electrophoresis |