| Acronym | Meaning |
| ISE | Iterative Secular Equation (method For Solving The Schroedinger Equation) |
| AGNES | Absence Of Gradients And Nernstian Equilibrium Stripping |
| RPCR | Restricted Principal Component Regression |
| TID | Traveling Ionospheric Disturbance |
| ENAC | Energetic Neutral Atom Camera |
| ODC | Optimized Double Configuration |
| PDFT | Perturbation Density-functional Theory |
| CNRS | Centre Nationale De La Recherche Scientifique (France) |
| IUCLID | International Uniform ChemicaL Information Database |
| TCCL | Toxic Chemicals Control Law (Korea) |