Great ditrigonary dishecatonicosachoron

The great ditrigonary dishecatonicosachoron, or gidditdy, is a nonconvex uniform polychoron that consists of 120 great ditrigonary icosidodecahedra and 120 great ditrigonal dodecicosidodecahedra. 2 great ditrigonary icosidodecahedra and 6 great ditrigonal dodecicosidodecahedra join at each vertex.

It is in the same regiment as the rectified small ditrigonary hexacosihecatonicosachoron.