| Acronym | Meaning |
| PIHMC | Path Integral Hybrid Monte Carlo |
| MARISS | Mass Resolved Ion Scattering Spectrometry |
| PIXE | Particle Induced X-ray Emission |
| DRP | Deutsches Reichpatent |
| ECS | Energy-corrected Sudden (scaling Theory In Mol. Collisions) |
| CCAP | Climate Change Action Plan |
| IACIS | International Association Of Colloid And Interface Scientists |
| CTOD | Crack Tip Opening Displacement |
| VRIOSA | Vibrational/rotational Infinite-order Sudden Approximation |
| DOI | Department Of The Interior |