| Acronym | Meaning |
| PCM | Pulse Code Modulation |
| MALTS | Marine Layer Thickness Study |
| IOS | Input/Output Subsystem |
| UCAR | Unmanned Combat Armed Rotorcraft |
| FIFE | First ISLSCP Field Experiment |
| AOV | Air-operated Valve |
| CDC | Centers For Disease Control |
| DOA | Department Of Agriculture |
| HDGEC | Human Dimension Of Global Environment Change |
| AICE | American Institute Of Chemical Engineers |