| Acronym | Meaning |
| MC CI | Multiconfigurational Configuration Interaction |
| HLR | Hydraulic Loading Rate |
| CEPA-2V | Coupled-electron-pair Approxn. (with) Variational (method) |
| CRISTA | Cryogenic Infrared Spectrometers And Telescopes For The Atmosphere |
| PLSR | Partial Least-squares Regression |
| HTGR | High-Temperature Gas Reactor |
| ICDD | International Center For Diffraction Data |
| VFD | Vacuum Fluorescent Display |
| MC-TD-SCF | Multiconfiguration-time Dependent-self-consistent Field |
| OIA | Office Of International Activities |