| Acronym | Meaning |
| ASFF | Aerated Stationary Or Submerged Fixed-film (wastewater Treatment) |
| BIRD | Bilinear Rotation Decoupling |
| LOPC | Laser Optical Particle Counter |
| FEED | Field Emission Energy Distribution |
| SPORE | Solid-Phase Organic Reactions |
| GVVPT | Generalized Van Vleck Perturbation Theory |
| PIES | Penning Ionization Electron Spectroscopy |
| CCFO | Charge-charge Flux Overlap (model In Mol.-property Calcns.) |
| OTTLE | Optically Transparent Thin-layer Electrode |
| TRD | Transition Radiation Detector |