| Acronym | Meaning |
| LSTH | Liu-Siegbahn-Truhlar-Horowitz (potential-energy Surface) |
| GRM | Geopotential Research Mission (USA Satellite) |
| KTFPB | Potassium Tetrakis[3 |
| MEM | Maximum Entropy Method |
| EK | Extended Koopmans (method In Ionization Potential Calcns.) |
| OFAGE | Orthogonal-field-alternation Gel Electrophoresis |
| PPPA | Poison Prevention Packaging Act |
| FMD | Foot And Mouth Disease |
| ISCI | Initial-state Configuration Interaction |
| IPP | Isotactic Polypropylene |