| sp | ht specific heat |
|---|---|
| SPR | sepiapterin reductase; serial probe recognition; specific pathogen free; Society for Pediatric Radio... |
| SRAW, SRaw | specific airway resistance |
| SRCA | specific red cell adherence |
| SRD | service-related disability; Society for the Relief of Distress; Society for the Right to Die; sodium... |