| Acronym | Meaning |
| PDR | Photon-dominated Region |
| AFBS | Anaerobic Fluidized Bed Systems |
| GWPM | Gaussian Wave-packet Method |
| AOCS | American Oil Chemists' Society |
| ZIA | Zone Immunoassay |
| HRM | Hydrochlorination Reaction Mixt. |
| ADMI | American Dye Manufacturers Institute |
| OCIS | Optics Classification And Indexing Scheme |
| HDM | Humic Degradation Matter |
| PO-MO | Pars Orbital-MO |