| Acronym | Meaning |
| CUSMAP | Conterminous United States Mineral Assessment Program |
| DMCC | Dimethylcarbamyl Chloride |
| TRIR | Time-resolved IR |
| BEEM | Ballistic Electron Emission Microscopy |
| RACS | Response Action Contractors |
| STERAO | Stratosphere-Troposphere Experiments: Radiation |
| ACP | Acid Phosphatase |
| GLF | Gaussian Lobe Function |
| HRMSI | High-Resolution Multispectral Instrument (EOS) |
| BS | Breathing Sphere (approxn. In Mol.-scattering Calcns.) |