| Acronym | Meaning |
| SDG | Signed Directed Graph (model) |
| OCPSF | Organic Chemical, Plastics, And Synthetic Fiber Industry |
| GEO | Geostationary Earth Orbit |
| HAP | Hazardous Air Pollutants |
| HAUP | High Accuracy Universal Polarimeter |
| EXRHF | Extended Restricted Hartree-Fock |
| BIPM | Bureau International Des Poids Et Mesures |
| UEBS | Unitarized Eikonal Born Series (in Electron-atom Scattering) |
| DODCI | 3,3'-Diethyloxadicarbocyanine Iodide |
| SSF | Synchronous Scanning Fluorescence |