| Acronym | Meaning |
| RBS | Rutherford Backscattering Spectrometry |
| PIRU | Public Information Reference Unit |
| CCMET | Coupled-cluster Many-electron Theory |
| MIBK | Methyl Isobutyl Ketone |
| MSK | Muscular-skeletal Effects |
| ACC | Antarctic Circumpolar Current |
| PSD | Passive Sampling Device(s) (for Air Pollution) |
| HEN | Heat Exchanger Network |
| DMC | Dough Molding Compound |
| HPIC | High-performance Ion Chromatography |