| Abbreviation | Definition |
|---|---|
| SO | Supraorbital |
| SO | Sutures Out |
| SOAP | Subjective, objective, assessment and plan (a progress note) |
| SOB | Shortness Of Breath |
| SOB | Small Of the Back |
| SOBAR | Short Of Breath At Rest |
| SOBE | shortness of breath on exertion |
| SOC | Stream Of Consciousness |
| SOCRATES | Stages Of Change Readiness And Treatment Eagerness Scale |
| SOD | Septo Optic Dysplasia |
| SOD | Sodium |
| SOD | Sphincter of Oddi Dysfunction |
| SOD | SuperOxide Dismutase |
| SODBENZOATE | Sodium Benzoate |
| SODBICARB | Sodium Bicarbonate |
| SODBIPHOS | Sodium Biphospahte |
| SODCITR | Sodium Citrate |
| SODCL | Sodium Chloride |
| SODFL | Sodium Fluoride |
| SODHYDROX | Sodium Hydroxide |