| Acronym | Meaning |
| LECD | Lifetime Equivalent Constant Dose |
| CDA | Cosmic Dust Analyzer |
| PCA | Polar Cap Absorption |
| DF | Decontamination Factor |
| PEEM | Panel Of Experts On Environmental Management |
| CSF | Carcinogenic Slope Factor |
| GHRF | Growth Hormone-releasing Factor |
| EK | Extended Koopmans (method In Ionization Potential Calcns.) |
| CNDO/SWW | Complete Neglect Of Differential Overlap/ Sichel-Whitehead-Wratten Parametrization |
| RDS | Respiratory Distress Syndrome |