| Acronym | Meaning |
| MDC | Maxwell Displacement Current |
| GODIVA | GOME Data Interpretation |
| WMAP | Wilkinson Microwave Anisotropy Probe |
| FFF | Field-flow Fractionation |
| USABC | United States Advanced Battery Consortium |
| O/E | Observed Number/expected Number Ratio = Relative Risk |
| RGC | Retinal Ganglion Cell |
| FRDM | Finite-Range Droplet Model |
| USPC | Unoccupied-states Potential Correction |
| PNO | Pseudonatural Orbital |