| SIL | soluble interleukin; speech interference level |
|---|---|
| SIRS | soluble immune response suppressor; Structured Interview of Reported Symptoms; systemic inflammatory... |
| SLA | left sacroanterior [fetal position] [Lat. sacrolaeva anterior]; single-cell liquid cytotoxic assay; ... |
| sol | soluble, solution |
| sRNA | soluble ribonucleic acid |