second phase - set of support
- self-rescuing
- self-reversal
- self-sharpening bit
- self-similar
- self-sumping cutter drum
- self-supporting roof
- self-tipping car
- self-travelling
- selfsumping
- selfsumping shearer
- seligmanite
- seligmannite
- selinite
- sellaite
- sellate
- selliform
- selliform test
- selonodont type
- selva
- selvage
- selvages
- selvedge
- semblance
- semblance cloud
- semblance coefficient contour graph
- semblance coefficient contour map
- semi-anthracite
- semi-circular arch
- semi-circular arched girder
- semi-consolidated
- semi-diurnal constituents
- semi-diurnal thermals
- semi-diurnal tide
- semi-graben
- semi-longitudinal fault
- semi-precious
- semi-quantitative
- semi-quantitative interpretation
- semi-range of tide
- semi-sealed wire