Retrosnub hecatonicosachoron

The retrosnub hecatonicosachoron, or rashi, is a scaliform polychoron. It consists of 120 small retrosnub icosicosidodecahedra and 1440 pentagrammic pyramids. It is notable for having icosahedral snub polyhedra as cells.

Related polychora
This polychoron can be formed as a retrograde holosnub truncated faceted hexacosichoron.

Expanding the sirsid cells in different ways produces two more scaliform polychora: the prismatorhombiretrosnub hecatonicosachoron and retroprismatorhombiretrosnub hecatonicosachoron.