| Acronym | Meaning |
| TCDW1 | Target Continuum Distorted-wave 1st-order (for At. Collisions) |
| CAS-SCF | Complete Active Space SCF (a CI-type Method) |
| XANES | X-ray Absorption Near Edge Structure |
| ENAA | Epithermal Neutron Activation Analysis |
| SMSI | Strong Metal-support Interaction |
| EMAG | Electron Microscopy And Analysis Group |
| MISFET | Metal-insulator-semiconductor Field Effect Transistor |
| HLG | Hedin-Lundqvist-Gunnarsson (spin D. Functional) |
| AST | Aspartate Aminotransferase |
| FGH | Fourier-grid Hamiltonian |