| Acronym | Meaning |
| AFOEHL | Air Force Occupational And Environmental Health Laboratory |
| AEI | Avalanche Electron Injection |
| QCA | Quasichemical Approxn. (in Calcns. On Semiconductors) |
| CIOS | Corrected Infinite-order Sudden (approxn In Mol. Collisions) |
| USP | United States Pharmacopeia |
| CESAR | Canadian Expedition To Study The Alpha Ridge |
| APOMA | American Precision Optics Manufacturers Association |
| DAPC | Department Of Air Pollution Control |
| ESES | Environmental Sampling Expert System |
| TAFI | Thrombin Activatable Fibrinolysis Inhibitor |