| Acronym | Meaning |
| FIT | Flow Injection Titration |
| NLLSQ | Nonlinear Least Squares |
| LOEL | Lowest-Observed-Effect Level |
| MRSPT | Modified Rayleigh-Schroedinger Perturbation Theory |
| NPS | National Park Service (US) |
| FTS | Fourier Transform Spectroscopy |
| EXGF(1) | Extended Group Function(1) (model Wave Function Accounting For Electron Correlation) |
| MIC | Microbially Induced Corrosion |
| STORMS | Nevada Study And Tests Of The Release Of Mercury From Soils |
| CSRO | Chemical Short-range Order |