Disphenocingulum

The disphenocingulum, or dawci, is one of the 92 Johnson solids (J90). It consists of 4+8+8 triangles and 4 squares.

It is one of several polyhedra near the end of the list of Johnson solids with no obvious relation to any of the uniform polyhedra. The name is derived from "spheno" (meaning a wedge-like arrangement of two "lunes", where each lune consists of a square attached to two triangles - "di" signifying two such complexes) and "cingulum" denoting a crown-like belt of 12 triangles.