Cube 4-Compound
A compound with the symmetry of the Cube which arises by joining four Cubes such that each 
axis falls along the axis of one of the other Cubes (Holden 1971, p. 35).
References
Holden, A. Shapes, Space, and Symmetry. New York: Dover, 1991.
- Solid Partition
- Solidus
- Solitary Number
- Soliton
- Solomon's Seal Knot
- Solomon's Seal Lines
- Solomon's Seal Polygon
- Solvable Congruence
- Solvable Group
- Solvable Lie Group
- Soma Cube
- Somer-Lucas Pseudoprime
- Sommerfeld's Formula
- Somos Sequence
- Sondat's Theorem
- Sonine Polynomial
- Sonine-Schafheitlin Formula
- Sonine's Integral
- Sophie Germain Prime
- Sorites Paradox
- Sorting
- Sort-Then-Add Sequence
- Source
- Sous-Double
- Souslin Set