| Acronym | Meaning |
| HSES | Hydrostatic Equilibrium System |
| NEROS | Northeast Regional Oxidant Study |
| IMAGE | International Monitor For Auroral Geomagnetic Effects |
| NAL | No Action Level |
| MAA | Melanoma-associated Antigen |
| MINDO/3L | Modified Intermediate Neglect Of Differential Overlap/3 For Limited Electrons |
| PGM | Platinum-group Mineral(s) |
| KKR-GF | Korringa-Kohn-Rostoker-Green Function |
| ROSH | Registry Of Occupational Safety And Health |
| SNMS | Sputtered Neutral Mass Spectrometry |