Octahedral rotunda (EntityTopic, 15)
From Hi.gher. Space
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The octahedral rotunda is a CRF polychoron, octahedron || enlarged octahedron || truncated octahedron. Its lace tower is xux3oox4ooo&#xt (where "u" is an edge twice as long as "x"). Its cells are one octahedron, 8 truncated tetrahedra, 6 square pyramids, and a truncated octahedron. It can also be considered a truncated octahedral pyramid.
