| Acronym | Meaning |
| LIFS | Laser Induced Fluorescence Spectroscopy |
| TRSERS | Time-resolved Surface Enhanced Raman Spectroscopy |
| COA | Coenzyme A |
| NTI | Negative Thermal Ionization (for Mass Spectrometry) |
| PWBA-EX | Plane-wave Born Approxn. (with) Exchange |
| NDBEPR | Nitrification-denitrification Biological Excess Phosphorus Removal |
| AFEAS | Alternative Fluorocarbon Environmental Acceptability Study |
| EIA | Energy Information Administration (DOE) |
| BAT | Back Arc Tectonics |
| ACL | Alternative Concentration Limit |