| Acronym | Meaning |
| IMAGE | International Monitor For Auroral Geomagnetic Effects |
| DAF | Dissolved Air Flotation |
| HOEF | Harmonic Oscillator With External Field Model (in Collisions) |
| QPF | Quantitative Precipitation Forecasts |
| MLD | Metachromatic Leukodystrophy |
| PANNA | Pesticide Action Network North America |
| ES | Emission Spectroscopy (technique Suffix) |
| SBA | Small Business Administration |
| HKS | Hohenberg-Kohn-Sham (quantum Theory) |
| CEA | Carcinoembryonic Antigen |