| Acronym | Meaning |
| MMC | Molecular Mechanics For Clusters Model |
| PT | Perturbation Theory |
| RVC | Reticulated Vitreous Carbon (electrode) |
| AWSAR | Annual Whole Sludge Application Rate |
| HCMOS | High-density Complementary Metal-oxide Semiconductor |
| ASTRAP | Advanced Statistical Trajectory Regional Air Pollution Model |
| PMF | Progressive Massive Fibrosis |
| RIC | Resource Conservation And Recovery Act Docket Information Center |
| EPBRE | External Pressure Balanced Ref. Electrode |
| DXRD | Differential X-ray Diffraction |