| Acronym | Meaning |
| ROI | Reactive Oxygen Intermediate |
| HPGE | High Purity Germanium |
| SCM | Shell-correction Method (in Calcns. For Metal Clusters) |
| PSFT | Progressive Saturation Fourier Transform |
| TESS | Triboelectrostatic Separation |
| ATMOS | Atmospheric Trace Molecule Spectroscopy |
| UMTRCA | Uranium Mill Tailings Radiation Control Act |
| LSPR | Localized Surface Plasmon Resonance |
| DASCO | Discriminant Analysis With Shrunken Covariances |
| ISTS | Impulsive Stimulated Thermal Scattering [a Laser-based Ultrasonic Technique] |