suspended material - telephotometry log
- symmetrical split spread
- symmetrical syncline
- symmetrically folded mountain range
- symmetry
- symmetry operations
- symmict
- symmictite
- symmicton
- sympatric
- symphrattism
- symphytium
- symplectic
- symplectite
- symplektic intergrowth
- symplektic texture
- symplektite
- symplesite
- sympod
- sympodial inflorescence
- sympodium