| Acronym | Meaning |
| DUDFCD | Denver Urban Drainage And Flood Control District |
| LPC | Large Particle Count |
| NAE | National Academy Of Engineering |
| MOS | Marine Observation Satellite |
| DNFSB | Defense Nuclear Facilities Safety Board |
| AFESC | Air Force Engineering & Sciences Center |
| STEP | Stratosphere-Troposphere Exchange Project |
| IUCR | International Union Of Crystallography |
| TROMEX | Tropical Meteorology Experiment |
| RPN | (Division De) Recherche En Precision Numerique |