Medial retrosphenoverted hecatonicosihexacosihecatonicosachoron

The medial retrosphenoverted hecatonicosihexacosihecatonicosachoron, or mrawv hixhi, is a nonconvex uniform polychoron that consists of 600 truncated tetrahedra, 120 icosidodecahedra, and 120 icosidodecadodecahedra. 1 icosidodecahedron, 2 truncated tetrahedra, and 2 icosidodecadodecahedra join at each vertex.

It is in the same regiment as the small rhombated small stellated hecatonicosachoron.