- stopping rule
- stopping time
- store and forward switching
- stored-program control exchange
- St.Petersburg dilemma
- straight line
- straight-line curved surface
- straight line embedding
- straight line in a plane
- straight line in Rn
- straight-line surface of revolution
- strain
- strain energy of elastic body
- strain energy release rate
- strain tensor
- strange attractor
- Straszewicz theorem
- strategic equivalence
- strategy
- strategy set
- stratifiable space
- stratified random sample
- stratified random sampling
- stratified sample
- stratified sampling