| Acronym | Meaning |
| RTMS | Room Temperature Molten Salt |
| AVE | All Valence Electron |
| CCGT | Closed Cycle Gas Turbine |
| HEIS | High Energy Ion Scattering |
| OPAL | Optical Pumping Absorption Lidar |
| MIEHM | Modified Iterative Extended Hueckel Method |
| SBA | Small Business Administration |
| LOC | Level Of Concern |
| MRCC | Multireference Coupled Cluster |
| EPO | European Patent Organization |