| Acronym | Meaning |
| PAC | Polycyclic Aromatic Compound |
| MCY | Matsuoka-Clementi-Yoshimine (potential Function) |
| MRSI | Magnetic Resonance Spectroscopic Imaging |
| MAMA | Multianode Microchannel Arrays |
| ISM | Interstellar Medium |
| HERCULES | High Efficiency Radiation Counter For Ultimate Low Emission Sensitivity |
| OPIDP | Organophosphate Induced Delayed Polyneuropathy |
| HASI | Huygens Atmospheric Structure Instrument |
| RIP | RCRA Implementation Plan |
| NICE | Neutral Interstellar Composition Experiment |