| Abbreviation | Definition |
|---|---|
| SPO2 | Peripheral capillary oxygen saturation |
| SPPS | Scandinavian Plant Physiology Society |
| SPR | Sprain |
| SPR | Spray |
| SPRV | Systolic Pressure of Right Ventricle |
| SPS | Samples Per Second |
| SPS | Small Polyp Stony |
| SPS | Small Polyped Stony |
| SQ | SQuamous |
| SQ | Subcutaneous |
| SQV | Saquinavir |
| SR | Sedimentation Rate |
| SR | Severely Restricted |
| SR | Sex Reversal |
| SR | Sinus Rhythm |
| SR | Skilled Relaxation |
| SR | Skin Resistance |
| SR | Slow Response |
| SR | Spontaneous Respiration |
| SR | Stretch Reflex |