| SDA | right sacroanterior [fetal position] [Lat. sacrodextra anterior]; sialodacryoadenitis; specific dyna... |
|---|---|
| SFAP | single-fiber action potential |
| S-MUAP | surface-detected motor unit action potential |
| SNAP | sensory nerve action potential; S-nitroso-N-acetylpenicillamine |
| SWA | seriously wounded in action; slow-wave activity |