| Acronym | Meaning |
| IRM | Isothermal Remanent Magnetization |
| PLDA | Piecewise Linear Discriminant Analysis |
| SOC | Synthetic Organic Chemical |
| CCTM | Coupled-channel Transition Matrix (in Atom-surface Scattering) |
| IISCI | Initial Ionic State Comfiguration Interaction |
| CLIA | Chemiluminescence Immunoassay |
| FIM | Friable Insulation Material |
| VE-PPP | Variable Electronegativity PPP |
| TCM | Total Capacitance Method |
| REP | Radiological Emergency Planning |