| Acronym | Meaning |
| CI | Configuration Interaction |
| OBK2 | Second-order Oppenheimer-Brinkman-Kramers |
| GSMO | Ground-state Molecular Orbital |
| MW | Molecular Weight |
| VCXO | Voltage Controlled Crystal Oscillator |
| D-CI | Double Excitations In Configuration Interaction |
| STARR | Staged Approach To Risk Reduction |
| FIFRA | Federal Insecticide |
| ISIRS | International Sorption Information Retrieval System |
| NADAP | National Atmospheric Deposition Assessment Program |