| Acronym | Meaning |
| MR-L-CEPM | Multireference-linearized-coupled Electron Pair Method |
| FACSS | Federation Of Analytical Chemistry And Spectroscopy Societies |
| ERBE | Earth Radiation Budget Experiment |
| ELIFA | Enzyme-linked Immunofiltration Assay |
| USCAR | United States Council For Automotive Research |
| SMSO | Spinor Molecular Symmetry Orbital |
| EQA | External Quality Assessment |
| NRC | National Research Council |
| RTIL | Room-temperature Ionic Liquid |
| IAB | Information Access Branch |