small circle
[geodesy] The circle made when a flat plane intersects a sphere anywhere but through its center. Parallels of latitude other than the equator are small circles.
GIS Dictionary
small scale
[cartography] Generally, a map scale that shows a relatively large area on the ground with a low level of detail.
smart pointer
[programming] A Visual C++ class implementation that encapsulates an interface pointer, providing operators and functions that can make working with the underlying type easier and less error prone.