| Acronym | Meaning |
| PFE | Pressurized Fluid Extraction |
| QRIOSA | Quantum Reactive Infinite Order Sudden Approxn. |
| TBU | Tertiary Building Unit |
| ESTEC | European Space Research And Technology Centre |
| MDMI | Monodisperse Dried Microparticulate Injector |
| MPE | Multiphoton Excitation |
| MAGE | Marine Aerosol And Gas Exchange Experiment |
| USN | Ultrasonic Nebulizer |
| QUAPI | Quasiadiabatic Propagator Path Integral Method |
| MIS | Management Information System (OSHA) |