| Acronym | Meaning |
| QR-MWH | Quasi-relativistic Mulliken-Wolfsberg-Helmholz Method |
| ACES | Annual Cycle Energy Storage System |
| MSP | Monosodium Phosphate |
| SECV | Standard Error Of Cross-validation |
| LOESS | Locally Weighted Smoothers [in Modeling] |
| CEDIA | Cloned-enzyme Donor Immunoassay |
| IMPROVE | Interagency Monitoring For Protected Visual Environments |
| CNAEL | Committee On National Accreditation Of Environmental Laboratories (US EPA) |
| AOC | Administrative Order Of Consent |
| ISM | Interaction Site Model (in Statistical Mechanics Of Fluids) |