| Acronym | Meaning |
| PGE | Platinum Group Elements |
| MAB | Molecular Aharonov-Bohm (electronic-structure Effect) |
| PQCD | Perturbative Quantum Chromodynamics |
| PPT-MCF | Pseudo-polarization Tensor-mutually Consistent Field ( For Mol. Interactions) |
| FCI | Full Configuration Interaction |
| HRMSI | High-Resolution Multispectral Instrument (EOS) |
| MCRRPA | Multiconfiguration Relativistic Random Phase Approxn. |
| PRS | Perturbed Rotational State (method For Ion-mol. Collisions) |
| LTEC | Linear Thermal Expansion Coefficient |
| TED | Transmission Electron Diffraction |