- selsyn system
- semiautomatic defrosting
- semiaxis
- semiclear ice
- semiconductor electronics
- semicongealed condition
- semiempirical formular
- semifluid
- semilogarithmic scale
- semipermeable
- semipolar
- semiquantitative
- semiquantitative method
- semirefrigerated
- semiselective
- semisolid cryogen
- semisoluble
- semitone
- semivariable
- sensibilizer
- sensible heat
- sensing bulb
- sensitive element
- sensitivity scale
- sensitized luminescence
- separated constituent
- separation surface
- separator
- septum
- sequence switch
- series excitation
- series reactor
- series resonance
- series system
- series trip
- series-parallel
- serpentine cooler
- service line
- service output
- service riser
- service test
- service wires
- servomotor
- set point
- set pulse
- set-up
- setting process
- settler
- severity
- sexless connector
- sextet
- sextuple
- shading
- shading coil
- shading ring
- shadow effect
- shadow region
- shadowing
- shadowless
- shaft seal
- serving
- servoamplifier
- set
- setting pressure
- setting temperature
- settling tank
- shackle insulator
- shaded pole
- shading correction
- shadow attenuation
- shadow factor
- shadow printing
- shadow zone
- shaft cable
- shaft end
- shaft extension
- shaft horsepower
- shaft packing
- shaft work
- shaker
- shaking sieve
- shape factor
- shaping
- sharp picture
- sharp tuning
- sharp-focused
- sharpness
- shaved ice
- shear-thinning
- sheet
- sheet ice
- shelf freezing
- shell structure
- shield factor
- shielded joint
- shielded line
- shielded wire
- shifter
- ship
- shipboard refrigeration