A quintet is a group of five people commonly associated with musical groups, such as a string quintet or a group of singers. http://en.wikipedia.org/wiki/Quintet.
For the screw head shape, see Cheese head (screw). Cheesehead (Dutch: kaaskop) is a nickname which began as a slanderous term towards Dutch people, and later in the US became a general name for a person from Wisconsin (see: Wisconsin cheese). It is also the nickname for the fans of the Green Bay Packers NFL football franchise. 1 Origins 1.1 Wisconsin.
An alluvial fan is a fan-or cone-shaped deposit of sediment crossed and built up by streams. If a fan is built up by debris flows it is properly called a debris cone or colluvial fan. These flows come from a single point source at the apex of the fan, and over time move to occupy many positions on the fan surface.