| Acronym | Meaning |
| CR | Collocation Representation (of Basis Sets) |
| ORP | Oxidation-reduction Potential |
| PRB | Permeable Reactive Barrier |
| UTI | Urinary Tract Infection |
| BIS | Bremsstrahlung Isochromat Spectroscopy |
| TROLL | Transmitter And Receiver Of Laser Light |
| SAMS | Stratospheric And Mesospheric Sounder |
| CDSI | Committee On The Dissemination Of Scientific Information |
| SIMM | Single Inline Memory Module |
| GOMR | Global Ozone Monitoring Radiometer |