| Acronym | Meaning |
| PAUR | Photochemical Activity And Solar Ultraviolet Radiation [project] |
| PIRI | Photoinduced Rydberg Ionization |
| LII | Liquid Injection Incinerator |
| TDPAC | Time Differential Perturbed Angular Correlation |
| F4 | Fourth-order Feenberg (quantum Theory) |
| NK | Natural Killer |
| ANC | Acid Neutralizing Capacity |
| ERIS | Electrostatic Reflex Ion Source |
| CAE | Constant Analyzer Energy |
| MD/MC-CEM | Molecular Dynamics/Monte Carlo-corrected Effective Medium |