| s | Greek lower case letter sigma; conductivity; cross section; millisecond; molecular type or bond; pop... |
|---|---|
| SIP | Sickness Impact Profile; slow inhibitory potential; surface inductive plethysmography |
| SmIg | surface membrane immunoglobulin |
| S-MUAP | surface-detected motor unit action potential |
| SP | sacroposterior; sacrum to pubis; salivary progesterone; schizotypal personality; semi-private [room]... |