| Acronym | Meaning |
| LAPW | Linearized Augmented Plane Wave (for Band-structure Calcns.) |
| FIT | Field Investigation Team (US EPA) |
| MECS | Manufacturing Energy Consumption Survey (DOE) |
| GAM | Generalized Additive Model |
| AAFEGE | Asymptotically Adjusted Free-electron-gas Exchange (potential) |
| NPA | Natural Population Analysis (for Electron Configuration Of Mols.) |
| BEAUTY | BLAST Enhanced Alignment Utility |
| ACE | Angiotensin-converting Enzyme |
| CRMMA | Chemical Reference Material Manufacturers Association |
| TERRACE | Terrestrial Runoff Modeling For Risk Assessment Of Chem. Exposure |