| Acronym | Meaning |
| TPU | Thermoplastic Polyurethane |
| EAA | Excitatory Amino Acid |
| DWCDS | Drinking Water Criteria Documents |
| DIC | Differential Interference Contrast |
| CPD | Contact Potential Difference |
| HOCO | Highest Occupied Crystal Orbital |
| SPMP | Scanning Proton Microprobe |
| OSSE | Oriented Scintillation Spectrometer Experiment |
| EFPI | Extrinsic Fabry-Perot Interferometer Sensor |
| BALQSO | Broad Absorption Line Quasi-stellar Object |