| Acronym | Meaning |
| RILS | Regulatory Interpretation Letters |
| IEHMO | Iterative Extended Hueckel Molecular Orbital |
| PWSB | Plane-wave Second Born |
| CAM | Coupled Angular Modes (method In Calcns. On Electron Exchange Collisions) |
| PAFP | Photochemical Aerosol Forming Potential |
| PFS | Planetary Fourier Spectrometry |
| DAP | Distributed Array Processor |
| MCMP | Modified Corrugated Morse Potential |
| HFFT | Hot Filament Fouling Test |
| RGC | Retinal Ganglion Cell |