| Acronym | Meaning |
| HIRBS | Heavy-ion Rutherford Backscattering Spectrometry |
| X-SAR | X-Band Synthetic Aperture Radar |
| ETF | Exponential-type Function (an Ao) |
| LPA | Local Plasma Approxn. (in Calcns. Of Stopping Powers For Ions By Films) |
| UKIRT | United Kingdom Infrared Telescope |
| ASCOT | Atmospheric Studies In Complex Terrain |
| LISA | Lander For Ion-selective Analysis |
| EBCT | Empty Bed Contact Time |
| GIAO | Gage-independent Atomic Orbital |
| LPIC | Low Pressure Ion Chromatography |