see
seeker
seizing
seizure
selcal
select
selectance
selection
selective
selectivity
  selector
self-adaptive
self-adjusting
self-aligning
self-balancing
self-bias
self-calibration
self-cancellation
self-capacitance
self-check
self-checking

    selector ring telephone set

    телефонный аппарат с избирательным вызовом