| Acronym | Meaning |
| FEM | Free Electron Model |
| DRIFT | Diffuse Reflectance IR Fourier Transform |
| OSM | Overlapping Sphere Model |
| DNR | Department Of Natural Resources |
| VOF | Volume Of Fluid |
| AOU | Apparent Oxygen Utilization |
| SZA | Solar Zenith Angle |
| ZAAS | Zeeman Atomic Absorption Spectroscopy |
| AIP | American Institute Of Physics |
| SCOP | Structural Classification Of Proteins |