| Acronym | Meaning |
| USANS | Ultra-small-angle Neutron Scattering |
| SOS | Surfaces Of Section Method (semiclassical Calcn. Of Eigenvalues) |
| MS-RC(XI) | Multiple Scattering Relativistic Correlated (calcn. Method) |
| EBI | Equivalent Background Illumination |
| SCAIS | Simulation Code For Atm. IR Spectra |
| APTT | Activated Partial Thromboplastin Time |
| DIDA | Diisodecyl Adipate |
| OEP-SIC | Optimized Effective Potential Self-interaction Correction |
| RRT | Regional Response Team |
| HSLA | High-strength Low-alloy (steel) |