| Acronym | Meaning |
| UHC | Unburned Hydrocarbons |
| AIEMP | Ab Initio Environment Model Potential |
| TAP | Toxic Air Pollutant |
| RODS | Records Of Decision System |
| PTMG | Polytetramethylene Glycol |
| NOAO | National Optical Astronomy Observatories |
| NNLS | Non-negative Least-squares |
| ZSR | Zdanovskii-Stokes-Robinson [model] |
| IC-ACPF | Internally Contracted (multireference) Averaged Coupled Pair Functional |
| MBESMO | Maximum Bond Energy Symmetry MO |