| Acronym | Meaning |
| ACPF | Averaged Coupled Pair Functional |
| USPIO | Ultrasmall Superparamagnetic Iron Oxide |
| AWWARF | American Water Works Association Research Foundation |
| NDPK | Nucleoside Diphosphate Kinase |
| CCD | Charge Coupled Device |
| NCDC | National Climatic Data Center |
| LMW | Low Molecular Weight |
| EMMA | Electrophoretically-mediated Microanalysis |
| TOFD | Time Of Flight Diffraction |
| MRSPT | Modified Rayleigh-Schroedinger Perturbation Theory |