| Acronym | Meaning |
| OD | Optical Density |
| PRA | Probabilistic Risk Assessment |
| QDWT | Quantum Density-wave Theory (in Theory Of Freezing Of Quantum Systems) |
| SASS | Source Assessment Sampling System |
| TUNEL | Terminal Deoxynucleotidyl Transferase-mediated DUTP Nick End-labeling |
| GBH | Gravel Bed Hydroponic System (for Wastewater Treatment) |
| HERL/MIS | Health Effects Research Laboratory Management Information System |
| EBOM | Effective Bond-orbital Method |
| RT-PCR | Reverse Transcription-polymerase Chain Reaction |
| SSCAD | Spherical Self-consistent Atomic Deformation |