| Acronym | Meaning |
| APD | Areal Power Density |
| ESSC | Environmental Science Services Administration |
| AMS | American Mathematical Society |
| HAILSWATH | South Dakota Hail Studies |
| FEPCA | Federal Environmental Pollution Control Act |
| ELDO | European Launcher Development Organization |
| XMDSL | X Window Interface Distributed Software Library |
| AMEX | Australian Monsoon EXperiment |
| IAEA | International Atomic Energy Agency |
| AIF | Atomic Industrial Health Forum |