| Acronym | Meaning |
| PO | Polarization Orbital |
| AQS | Ambient Quality Standard |
| CVA | Characteristic Vector Analysis |
| ALEPH | Apparatus For LEP PHysics |
| PRISM | Parameter-related Internal Standard Method |
| OPGF | One-particle Green Function |
| SH3 | Src Homology 3 |
| ICCP | International Committee For Coal Petrology |
| TDM | Truncated Diagonalization Method |
| APES | Adiabatic Potential Energy Surface |