| Acronym | Meaning |
| PFWM | Parametric Four-wave Mixing |
| WINDS | Wideband Internetworking Engineering Test And Demonstration Satellite |
| I-TE | International Toxicity Equiv. |
| PED | Pulsed Electrochemical Detection |
| ABR | Advanced Breeder Reactor |
| NFRAP | No Further Remedial Action Planned |
| FCI | Fuel Coolant Interaction |
| IMF | Initial Mass Function |
| CAR | Computer Aided Retrieval |
| ECBM | Extended Classical Over-barrier Model (in Calcns. On Inelastic Ion-atom Colisions) |