| SSU | self-service unit; sterile supply unit |
|---|---|
| St, st | let it stand [Lat. stet]; let them stand [Lat. stent]; stage [of disease]; status; stere; sterile; s... |
| SVE | slow volume encephalography; soluble viral extract; sterile vaginal examination |
| SW | seriously wounded; short waves; sinewave; slow wave; soap and water; social worker; spike wave; spir... |
| SWI | sterile water for injection; stroke work index; surgical wound infection |