seal - sign
- seal soldering
- seal-in winding
- sealant
- sealed chamber
- sealed diode
- sealed end
- sealed hybrid circuit
- sealed-junction integrated circuit
- sealer
- sealing
- sealing
- sealing gas
- sealing glass
- sealing layer
- sealing schedule
- seam potting
- seam welding
- search angle
- search mode
- search radar
- SECAM color television system
- SECAM-Farbfernsehsystem
- séchage à haute fréquence
- séchoir infrarouge
- second adjacent channel
- secondaire à prise médiane
- secondary echo
- secondary emission factor
- secondary frequency standard
- secondary grade of reception quality
- secondary ion mass-spectrometry
- secondary losses
- secondary Q-factor
- secondary time standard
- secondary winding inductance
- secondary-electron emission
- secondary-electron emitter
- secondary-electron multiplier
- secondary-electron yield
- seconde sans erreur
