| Acronym | Meaning |
| FMD | Foot And Mouth Disease |
| PESIS | Photoelectron Spectroscopy Of The Inner Shell |
| GIPME | Global Investigation Of Pollution In The Marine Environment |
| GCLSDA | Gradient-corrected Local Spin Density Approximation |
| GSCRF | Generalized Self-consistent Reaction Field |
| PWEM | Partial-wave-expansion Method (in Electron Scattering Calcns.) |
| HNC | Hypernetted Chain |
| ISC | Intersystem Crossing |
| IPA | Independent-particle Approximation (in Quantum Calcns. On Solids) |
| SEMPI | Singly Excited Modified Perturbation Theory |