| Abbreviation | Definition |
|---|---|
| SQUID | Super-conducting QUantum Interference Device |
| SR | Selection Resolution |
| SR | Sensitivity Range |
| SR | Slow Rise |
| SR | Sound Response |
| SR | Step Rate |
| SR | Switch Replica |
| SR | Synchronous Rectifier |
| SRAC | Supplier Relations Action Council |
| SRAM | Static Random Access Memory |
| SRAN | Setra's Remote Annunciator |
| SRAPI | Speech recognition API |
| SRC | Sample Rate Conversion |
| SRC | Semiconductor Research Corporation |
| SRC | Sperry Research Center, Sudbury, Massachusetts |
| SRD | Spectral Recording Digital |
| SREC | Sussex Rural Electric Cooperative |
| SREP | Silicone Resin Emulsion Paint |
| SRF | Self-Resonant Frequency |
| SRK | Switch, RocKer |