Component
A Group 
is a component of 
if is a Quasisimple Group which is a SubnormalSubgroup of .
- Spindle Cyclide
- Spindle Torus
- Spinode
- Spinor
- Spiral
- Spiral Point
- Spira Mirabilis
- Spiric Section
- Spirograph
- Spirolateral
- Spline
- Splitting
- Splitting Algorithm
- Sponge
- Sporadic Group
- Sports
- Sprague-Grundy Function
- Sprague-Grundy Number
- Sprague-Grundy Value
- Spread (Link)
- Spread (Tree)
- Spun Knot
- Squarable
- Square
- Square Bracket Polynomial