| PSIL | preferred frequency speech interference level |
|---|---|
| SIL | soluble interleukin; speech interference level |
| SDL | serum digoxin level; speech discrimination level |
| SRT | sedimentation rate test; simple reaction time; sinus node recovery time; sitting root test; speech r... |
| SL | sarcolemma; sclerosing leukoencephalopathy; secondary leukemia; segment length; sensation level; sen... |