| Acronym | Meaning |
| TRLFS | Time Resolved Laser Fluorescence Spectroscopy |
| PAZ | Partial Annealing Zone (fission-track) |
| AERMOD | AMS/EPA Regulatory Model |
| MMCDF | Multichannel Multiconfiguration Dirac-Fock Method |
| MRI | Magnetic Resonance Imaging |
| TWTDS | Treatment Works Treating Domestic Sewage |
| SBSR | Single Bead String Reactor |
| VBM | Valence-band Model (in Electronic Structure Calcns.) |
| ACTS | Advanced Communications Technologies And Services |
| IGC | Inverse Gas Chromatog. |