| Acronym | Meaning |
 | SSR | Radar Picket Submarine (retired US Navy Hull Classification) -Solid State Recorder |
| TSEC | Transmission Security Encryption Code |
| MILSATCOM | Military Satellite Communications |
| CZMA | (US) Coastal Zone Management Act |
| SSKP | Single-Shot Kill Probability |
| IRSN | Institut De Radioprotection Et De S?ret? Nucl?aire (French |
| CMBR | Cosmic Microwave Background Radiation |
| AB | Able Seaman (rank) |
| DEM | Data Exchange Mechanism - Digital Elevation Model |
| I.E. | Id Est (Latin |
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