| Acronym | Meaning |
| IAM | Immobilized Artificial Membrane |
| CMF | Clay Minerals File (of Digitized X-ray Diffraction Traces) |
| SAR | Sequential Adiabatic Reduction |
| IODS | Identical Orbitals For Different Spins |
| FRC | Free Residual Chlorine |
| IMPPT | Interaction Moeller-Plesset Perturbation Theory |
| ODLTS | Optical Deep Level Transient Spectroscopy |
| GRD | Growth Rate Dispersion [crystallization] |
| GRO | Gasoline-range Organics |
| GEK | Geomagnetic Electrokinetograph |