| Acronym | Meaning |
| PCOP | Positron Correlation Polarization (potential) |
| RIA | Reactivity Initiated Accident |
| THM | Traveling Heater Method |
| KAERI | Korea Atomic Energy Research Institute |
| RCTM | Regional Chemical Transport Model |
| MAESA | Measurements For Assessing The Effects Of Stratospheric Aircraft |
| LTBRM | Lanczos Tight Binding Recursion Method |
| DHS | Department Of Homeland Securitypar |
| LCCSD | Linearized Coupled-cluster (theory With) Single (and) Double (excitations) (in Mol. Potential Calcns.) |
| CCE | Charge Composition Explorer |