| Acronym | Meaning |
| SPS | Surface Photovoltage Spectroscopy |
| MOE | Margin Of Exposure |
| CIDS | Circular Intensity Differential Scattering |
| BAP | Bioavailable Phosphorus |
| PLOT | Porous Layer Open Tubular (capillary Column For Gas Chromatography) |
| LIGO | Laser-interferometer Gravitational-wave Observatory |
| OIA | Office Of International Activities |
| LET | Linear Energy Transfer (in Spacecraft Power Systems) |
| POCI | Parent Orbital Configuration Interaction |
| MIRO | Mineral Industry Research Organization (UK) |