- scanning unit
- subscapular
- staphylokinase
- sodiumthiosulphate
- switching regulator
- scrape the bottom of the barrel
- swedenborg
- subhuman primate
- stone_sober
- sepaloid
- subcortical
- striatothalamic
- static test mode
- subdivision basidiomycota
- splanchnesthetic sensibility
- symbolic program system
- sequential scheduling system
- smokefree
- squeezable
- spica
- scare the shit out of
- self explanatory
- seminal fluid vesicle
- samuel huntington
- short term scheduling
- short_run
- standard sum of products
- septum transverus
- santa barbara
- schulz
- steinmetz
- software specification
- software recording facility
- system output writer
- systems design
- serum prothrombin time
- serosynovitis
- serum_iron binding capacity
- starlings law
- septohabenular tract
- subdivision basidiomycotina
- seedbed
- split decision
- self sacrificing
- sulcus subtarsalis
- supraventricular techycardia
- symbolic notation
- subclass elasmobranchii
- subclass selachii
- secondary destination