| Acronym | Meaning |
| STEL | Short Term Exposure Limit |
| HDI | High-density Inclusion |
| TBBA | Tightly-bound-on-the-bond Approxn. (band Structure Crystal) |
| QR-MWH | Quasi-relativistic Mulliken-Wolfsberg-Helmholz Method |
| ORSTB | Overlap-reduced Semiempirical Tight-binding |
| ACRR | Annular Core Research Reactor |
| GETE | Global Environmental Technology Enterprise |
| VDRE | Vitamin D-responsive Element |
| TFEL | Thin-film Electroluminescence |
| OMEGA | Method In Molecular Orbital Calculations |