| Acronym | Meaning |
| HEIR | High Energy Ion Recoil |
| PCN | Polychlorinated Naphthalene |
| DWPO | Distorted Wave Polarized Orbital |
| IDI | Ion Dipole Induced (potential Term In Potential Energy Surfaces) See Also LEPS-IDI |
| PHD | P-helicity Decoupling Scheme (p=momentum) |
| SGFET | Suspended Gate Field-effect Transistor |
| CIRRUS-1A | Cryogenic IR Radiance Instrumentation For Shuttle |
| ISSJ | International Scientific Station Of The Jungfraujoch (atm. Observatory |
| PCP | Photoelectric Charging Of Particles |
| SHR | Selective Hybrid Reduction |