| Acronym | Meaning |
| APSIS | Athenian Photochem. Smog Intercomparison Of Simulations |
| EIR | Environmental Impact Report |
| PVAL | Polyvinyl Alcohol |
| CC-PV(D,T,Q) | Correlation-consistent Polarized (double, Triple, Or Quadruple)-split Valence Basis Set |
| EE | Ecosystem Evaluation |
| MTDSC | Modulated Temperature Differential Scanning Calorimetry |
| FOEA | First-order Error Analysis |
| PSNO | Pseudonatural Orbital |
| IWKB | Iterated Wentzel-Kramers-Brillouin |
| DEM | Distinguishable Electron Method |