| Acronym | Meaning |
| UNO | Unrestricted Natural Orbital |
| HAM | Hydrogenic Atoms In Molecules |
| LTMPF | Low-Temperature Microgravity Physics Facility |
| HPI | Hazard Potential Index |
| MINT | Metal In-line Treatment |
| RSNA | Renal Sympathetic Nerve Activity |
| CEM | Corrected Effective Medium (for Atomic Interactions) |
| APU | Acid Purification Unit (acid Recovery System) |
| CJO | Chemical Journals Online |
| SINDO | Scaled Intermediate Neglect Of Differential Overlap |