| Acronym | Meaning |
| ACE | Angiotensin-converting Enzyme |
| LSW | Localized Spherical Wave (in Electronic Structure Calcns.) |
| HEA | Health And Environmental Assessment |
| TDI | Tolerable Daily Intake |
| IAG | Island-arc Granitoids |
| DAPC | Department Of Air Pollution Control |
| M-DOPE | Multivariate Design Of Process Experiments |
| CHF | Coupled Hartree-Fock |
| GVB-CI | Generalized Valence Bond-configuration Interaction (wave Function) |
| NIRS | National Inorganics And Radionuclides Survey |