| Acronym | Meaning |
| SAMPEX | Solar Anomalous And Magnetospheric Particle Explorer (spacecraft) |
| TPCA | Toxic Pit Cleanup Act (of California |
| BOSS | Brigham Young University Organic Sampling System |
| PTM | Posttranslational Modification |
| SACRED | Silicon Array For ConveRsion Electron Detection |
| DON | Dissolved Organic Nitrogen |
| TROLS | Terrestrial And Riparian Organisms |
| SSB | Semiclassical Sudden Born (approxn. In Ion-atom Collisions) |
| MACSIMS | Measurement Of Atmospheric Constituents By Selective Ion Mass Spectrometry |
| DCXD | Double Crystal X-ray Diffraction |