| Acronym | Meaning |
| ETEX | European Tracer Experiment |
| 4WM | Four Wave Mixing |
| MAT | Magic Angle Turning |
| NES | US National Eutrophication Study |
| BCRNM | Bending Corrected Rotating Nonlinear Model |
| MWCO | Molecular Weight Cut-off (in Membrane |
| 2DEG | Two-dimensional Electron Gas |
| MSA | Multivariate Statistical Analysis |
| MAGIC | Model Of Acidification Of Groundwater In Catchments |
| OECA | Office Of Enforcement And Compliance Assurance |