| Acronym | Meaning |
| TWV | Trinkwasserverordnung (German Drinking Water Ordinance) |
| UOVMO | Unoccupied Valence-type Mol. Orbital |
| CLIA | Chemiluminescence Immunoassay |
| EESI | Environment And Energy Study Institute |
| FONDA | First-order Nondegenerate Adiabatic (theory For Electron-mol. Inelastic Scattering) |
| ILEED | Inelastic Low-energy Electron Diffraction |
| CAI | Carcinogenic Activity Indicator |
| ICON | International Council On Nanotechnology |
| PLIF | Planar Laser Induced Fluorescence |
| SCO | Self-consistent Orbital |