| Acronym | Meaning |
| DCFT | Direct Coal-fired Turbine |
| MLCFA | Maximum Likelihood Common Factor Analysis |
| BTGA | Best Technology Generally Available |
| NOAO | National Optical Astronomy Observatories |
| OSM | Overlapping Sphere Model |
| ZLS | Zeeman Laser Scattering |
| WLM | Working Level Month (for Radiation Exposure) |
| BRI | Building-related Illness |
| EAA | Excitatory Amino Acid |
| HEPPS | 4-(2-hydroxyethyl)-1-piperazinepropanesulfonic Acid) |