| Acronym | Meaning |
| HSD | Hyperspherical Diabatic (wave Functions) |
| PEM | Pacific Exploratory Measurements |
| MIGD | Million Imperial Gallon Per Day |
| MCL | Maximum Contaminant Level |
| DFTS | Dispersive Fourier Transform Spectrometry |
| AEA-MO | All-electron Approxn.-mol. Orbital |
| ODLRO | Off-diagonal Long-range Order |
| JSAC | Japan Society For Analytical Chemistry |
| NCEA | National Center For Environmental Assessment |
| HACS | Hazard Assessment Computer System |