Truncated dodecahedron
The Dodekaederstumpf is a polyhedron ( polyhedron ), which is formed by blunting of the corners of a Pentagon - dodecahedron and one of the Archimedean bodies. Instead of the 20 vertices of the dodecahedron there are now as many equilateral triangles; the pentagons of the dodecahedron are regular to ten corners.
The dual polyhedron is the Dodekaederstumpf the Triakisikosaeder.