| SGR | Sachs-Georgi reaction; Shwartzman generalized reaction; skin galvanic reflex; submandibular gland re... |
|---|---|
| SLR | Shwartzman local reaction; single lens reflex; straight leg raising |
| SPAR | sensitivity prediction by acoustic reflex |
| SR | sarcoplasmic reticulum; saturation recovery; scanning radiometer; screen; secretion rate; sedimentat... |
| STNR | symmetric tonic neck reflex |