| Acronym | Meaning |
| CISD | Configuration Interaction With Single And Double Excitation |
| ECT | Emission-Computed Tomography |
| MGVB | Modified Generalized Valence Bond |
| INDO/S | Intermediate Neglect Of Differential Overlap Screened Approxn. |
| CPE | Chlorinated Polyethylene |
| FFEM | Freeze-fracture Electron Microscopy |
| ICTA | International Confederation Of Thermal Analysis |
| LUFT | Leaking Underground Fuel Tank |
| PTX | Pertussis Toxin |
| ISOLDE | Isotope Separator On Line |