self-saturation
self-scattering
self-sealing
self-setting
self-shadowing
self-sharpening
self-shielding
self-squegging
self-stabilization
self-starter
  self-starting
self-stopping
self-sufficient
self-supervisory
self-support
self-supporting
self-sustaining
self-synchronization
self-synchronizing
self-tangency
self-tapping