| Abbreviation | Definition |
|---|---|
| SP | secretory piece |
| SP | seizure prone |
| SP | senile plaque |
| SP | septum pellucidum |
| SP | serine protease |
| SP | serum protein |
| SP | severe periodontitis |
| SP | sialadenoma papilliferum |
| SP | slow potential |
| SP | social phobia |
| SP | sodium pentobarbital |
| SP | soft palate |
| SP | solid phase |
| SP | soluble protein |
| SP | spastic paralysis |
| SP | spectrophotometry |
| SP | speech pathology |
| SP | sphincter preservation |
| SP | spinous process |
| SP | spontaneous pneumothorax |