| Acronym | Meaning |
| EMA | Effective Medium Approximation |
| RTF | Room Temperature Fluorescence |
| VOA | Variable Optical Attenuator |
| ICAO | International Civil Aviation Organization |
| ESD | Electron-stimulated Desorption |
| LAGST | Leaking Above Ground Storage Tank |
| KT | Koopmans Theorem |
| SOPPA | Second-order Polarization Propagator Approxn. |
| AIH | Autoimmune Hepatitis |
| BCGF | B Cell Growth Factor |