| Acronym | Meaning |
| IEC | Ion-exchange Chromatography |
| RSAC | Remote Sensing Applications Center (US Forest Service) |
| CAMRAQ | Consortium For Advanced Modeling Of Region Air Quality |
| BS | Backscattering Spectroscopy |
| FFZE | Free-flow Zone Electrophoresis |
| IBS | Ion Backscattering Spectroscopy |
| DON | Dissolved Organic Nitrogen |
| DZP | (double Zeta)-polarization Contracted Gaussian Basis Set |
| TTSS | Type III Secretion System |
| RIOMETER | Relative Ionospheric Opacity Meter |