| Acronym | Meaning |
| SOEH | Scaled One-electron Hamiltonian (in SCF Calcns. On Mols.) |
| REX | Relativistically Parametrized Extended Hueckel |
| MPR | Magnetic Permeability Resonance |
| DGNAA | Delayed Gamma-ray Neutron Activation Analysis |
| BEA | Binary Encounter Approximation |
| ROMNET | Regional Ozone Modeling For Northeast Transport |
| RPE | Retinal Pigment Epithelium |
| NSDWR | National Secondary Drinking Water Regulations |
| CANDI | Carbon And Nutrient Diagenesis |
| CCOHS | Canadian Centre For Occupational Health And Safety |