Small diretrosnub disnub decahecatonicosadishexacosichoron

The small diretrosnub disnub decahecatonicosadishexacosichoron, or sadros daskydox, is a nonconvex uniform polychoron that consists of 1200 regular icosahedra (falling in pairs in the same hyperplane, forming 600 snub disoctahedra), 4800 octahemioctahedra (also falling into the same plane, forming a compound of two octahemioctahedra), 4800 truncated tetrahedra (forms a compound of two truncated tetrahedra), and 1200 more truncated tetrahedra (forms 120 truncated icosicosahedra).

This polychoron can be obtained as the blend of 10 small dipentary hecatonicosidishexacosichora. In the process some of the octahemioctahedra blend out fully, while the other cells compound as noted above.