| Acronym | Meaning |
| DBTT | Ductile-to-brittle Transition Temperature |
| HLMI | High Load Melt Index |
| QDVPT | Quasidegenerate Variational Perturbation Theory |
| DHMS | Dense Hydrous Magnesium Silicates |
| CDI | Continuous Deionization |
| NIA | National Institute On Aging |
| PXR | Parametric X-ray |
| NMHC | Nonmethane Hydrocarbons |
| THCP | Total Hazard Control Plan |
| DRIPSS | Drinking Water Information Processing Support System |