| Acronym | Meaning |
| AAPM | American Association Of Physicists In Medicine |
| SPASE | South Pole Air Shower Expt. |
| SUSIM | Solar Ultraviolet Spectral Irradiance Monitor |
| HRXPS | High Resolution X-ray Photoelectron Spectroscopy |
| NIWG | National Interagency Work Group |
| PI3K | Phosphatidylinositol 3-kinase |
| MR-RWA | Many Resonance-rotating Wave Approxn. |
| CILS | Core Ionization Loss Spectroscopy |
| DRIFT | Diffuse Reflectance IR Fourier Transform |
| SCIC | Single-column Ion Chromatography |