| Acronym | Meaning |
| HFIR | High Flux Isotope Reactor |
| ICSS | Intracranial Self-stimulation |
| VB | Valence Bond |
| HAN | Hydroxylamine Nitrate (salt) |
| EVA | Extravehicular Activity (related To Spacecraft) |
| NPTOC | Nonpurgeable Total Organic Carbon |
| LDT | Light Duty Truck |
| SCPF | Self-consistent Polarization Field Method |
| PERCI | Photoelectron Resonance Capture Ionization |
| IPEM | Ion-photon Emission Microscopy |