Dishecatonicosachoron

The dishecatonicosachoron, or dahi, is a nonconvex uniform polychoron that consists of 120 truncated icosahedra and 120 truncated great icosahedra. 2 of each join at each vertex.

It is the medial stage of the truncation series between a grand hecatonicosachoron and its dual great stellated hecatonicosachoron, which makes it the bitruncation of both of these polychora.