| Acronym | Meaning |
| USEPA | United States Environmental Protection Agency |
| DMSP | Defense Meteorological Satellite Program |
| ACNK | Al2O3/(CaO + Na2O + K2O) |
| RAM | Renormalized Atom Model (for Electronic-structure Calcns.) |
| PCOS | Polycystic Ovary Syndrome |
| MCP | Microchannel Plate |
| DLCA | Diffusion Limited Cluster Aggregation |
| ENR | Endogenous Nitrate Respiration |
| ECHIC | Evaporative Compact High-intensity Cooler |
| CLM | Contained Liquid Membrane |