| Acronym | Meaning |
| PSNO | Pseudonatural Orbital |
| GRI | Geosynthetics Research Institute (Drexel University |
| POLARIS | Photochem. Of Ozone Loss In The Arctic Region In Summer |
| DTUL | Deflection Temperature Under Load |
| DPV | Differential-pulse Voltammetry |
| DRAMA | Dipolar Restoration At The Magic Angle |
| DF | Decontamination Factor |
| ETA | Eigenstructure Tracking Analysis |
| TSEE | Thermally Stimulated Exoelectron Emission |
| PE | Population Equivalent (in Wastewater Treatment) |