China
Africa
- Skin maceration
- Skin prick test
- Skin repair
- Skin temperature
- Skin trauma
- Skins
- Skip
- Skiving
- Skull
- Skull fractures
- Skutterudite
- Skyglow
- Skyhook
- Skylake
- Skyrmions
- Skyscrapers
- Skywave
- Slab allocation
- Slab pull
- Slabs
- Slack bus
- Slack tide
- Slack variable
- Slag
- Slaking
- Slant range
- Slash-and-burn
- Slate
- Slate and stylus
- Slater determinants
- Slater-type orbitals
- Slates
- Slats
- Slave clock
- Sleds
- Sleep
- Sleep apnea
- Sleep debt
- Sleep deprivation
- Sleep efficiency
- Sleep medicine
- Sleep mode
- Sleep spindles
- Sleep tracking
- Sleeping sickness
- Sleeve
- Sleeve gastrectomy
- Sleeve valves
- Slender-body theory
- Slenderness ratio
- Slerp
- Slew
- Slew rate
- Slewing
- Slice sampling
- Sliced inverse regression
- Slicer
- Slicing software
- Slick
- Slickensides
- Slide rules
- Slide valves
- Sliders
- Sliding
- Sliding mode control
- Slime layer
- Slip
- Slip angle
- Slip casting
- Slip factor
- Slip forming
- Slip ratio
- Slip rings
- Slipform
- Sliplining
- Slipped capital femoral epiphysis
- Slipperiness
- Slipstream
- Slipways
- Slit lamp
- Slitting
- Slope
- Slope efficiency
- Slope field
- Slope stability
- Slope stability analysis
- Slot antennas
- Slot waveguide
- Slot-die coating
- Slot-waveguide
- Slots
- Slotted line
- Sloughs
- Slow earthquakes
- Slow light
- Slow sand filters
- Slow steaming
- Slow-wave sleep
- Slowness
- Slub
- Sludge
- Sludge bulking
- Sludge incineration
- Sludge volume index
- Slug flow
- Slug test
- Slugging
- Sluice
- Slurry
- Slurry pipeline
- Slurry transport
- Slurry wall
- Slush
- Smad
- Smad3
- Smad4
- Small RNAs
- Small cell lung cancer
- Small cells
- Small circle
- Small data
- Small for gestational age
- Small form factor
- Small form-factor pluggable
- Small hydro
- Small incision lenticule extraction
- Small intestine
- Small molecule
- Small satellites
- Small wind turbine
- Small-angle approximation
- Small-angle scattering
- Small-angle x-ray scattering
- Small-c
- Small-cell carcinoma
- Small-gain theorem
- Small-signal
- Small-signal model
- Small-world networks
- Smallholder
- Smaltite
- Smart
- Smart antennas
- Smart cards
- Smart charging
- Smart devices
- Smart environment
- Smart fluids
- Smart glass
- Smart glasses