- sulphinyl
- sulphocarbonate
- sulphonate
- sulphonyl
- sulphur ball
- sulphur content
- sulphur mud
- sulphur oxide
- sulphur test
- sulphuretted hydrogen
- sulphurous
- sulphurous combustible
- sulphydrate
- sump
- sump oil
- sump pump
- sunstone
- super compressibility
- superglacial moraine
- superimposed structure
- supernatant
- stringer zone
- stringiness agent
- stringing pipe
- strip
- strip chart
- strip lining
- strip mining
- strip steel
- stripped gas
- stripped oil
- stripping drum
- stripping pipe
- stripping section
- stripping still
- strontium
- structual sealant
- structural adhesive
- structural advance
- structural change
- structural chemistry
- structural control
- structural depression
- structural discordance
- structural feature
- structural part
- structural relief
- structural saddle
- structural sealant
- structural shape
- structural unit
- strum
- strutting
- stuffing box
- styphnic acid
- stythe
- subglacial
- sublevel caving
- submagma
- submerged
- submersion
- subsequent divide
- subsidence effect
- substandard material
- substation
- substitute fuel
- successive sample
- succinic
- suction pit
- suds booster
- suede
- sugar beet
- sugar cane
- sugar refinery
- sulfa drug
- sulfamic
- sulfhydryl
- sulfonation
- sulfur acid
- sulfur gasoline
- sulfur trioxide
- sulfurous
- sulphamic
- sulphated oil
- sulphide mineral
- sulphide zone
- sulphinic
- sulphite
- sulpho
- sulphonation
- sulphonic acid
- sulphur
- sulphur hexafluoride
- sulphur number
- sulphur still
- sulphuret
- structure number
- structure well
- stucco
- stuck