- saffron
- saggar
- sahlite
- Sakmarian stage
- salammoniac cell
- sale engineer
- sale value
- sales agreement
- salfemic
- salicin
- salicylate
- salifiable
- sample inquiry
- sample jerk
- sample log
- sample mark
- sample outlet
- sample shot
- sample trap
- sample trough
- sample washer
- sampling error
- sampling nozzle
- sampson post
- sand dredger
- sand drift
- sand heave
- sand lens
- sand pinnacle
- sand ripple
- sand rock
- sand stratum
- sand sucker
- sand washing
- sand-blast
- sandarac gum
- sandstone band
- sandstone dyke
- sandstone quarry
- sandy
- sanidinite
- sap
- sapele
- saponifiable
- saponification test
- saponifier
- sapping
- sapwood
- saran
- Sarmatian stage
- sassafras oil
- satin gloss
- satin spar
- saturated compound
- saturated compounds
- saturated cycle
- saturated hydrocarbon
- saturated layer
- saturation
- saturation diver
- saturation diving
- saturation index
- saturation tower
- sawdust
- scale remover
- scale wax
- scale-coated
- scarcity
- scarn
- scavenging pump
- scavenging tube
- schallerite
- scheererite
- schiller
- schistic rock
- schistous clay
- schorlomite
- scoop chain
- scorch
- scoria
- sand bath
- sand box
- sand desert
- sand dome
- sand glass
- sand hitch
- sand hopper
- sand packing
- sand pump
- sand reef
- sand reel
- sand room
- sand sheave
- sandblasted pebble
- sandstone lens
- sandwich
- sandy clay
- sandy facies
- sandy limestone
- sandy shale