| Acronym | Meaning |
| DIB | Dibutyl Chlorendate |
| HSF | Hiller-Sucher-Feinberg (equation For Calcn. Of Spin Densities And Charge Densities In Mols.) |
| FPC | Fixed Partial Charge |
| PTH | Parathyroid Hormone |
| IADN | Integrated Atmospheric Deposition Network |
| MOSO | Maximum Overlap Symmetry Orbital (MO For Mols.) |
| SANO | Symmetry-adapted Natural Orbital |
| CCAA | Canadian Clean Air Act |
| AOD | Argon Oxygen Decarburization |
| FMAT | Fluorometric Microvolume Assay Technology |