smokescope - spectrum selector
- space telegraphy
- space trajectory
- space truss
- space vehicle
- space velocity
- space vessel
- space wave
- space welding
- space-charge cloud
- space-charge density
- space-charge grid
- space-communication
- space-communication system
- space-independent
- space-interval
- space-interval system
- spaceband
- spaceborne computer
- spaceborne system
- spacecraft
