| Acronym | Meaning |
| ILEED | Inelastic Low-energy Electron Diffraction |
| F/M | Food To Microorganism Ratio |
| NDDO | Neglect Of Diatomic Differential Overlap |
| RB | Renormalized Band (method In Electronic-structure Calcns.) |
| RFETS | Rocky Flats Environmental Technology Site |
| CAFB | Chemically Active Fluidized Bed |
| ACLSV | Apple Chlorotic Leaf Spot Virus |
| RIMS | Resonance Ionization Mass Spectrometry |
| TCF | Totally Chlorine-free [in Pulp Industry] |
| ALARA | As Low As Reasonably Achievable |