n. (Crystallog.) A combination of a cube and octahedron, esp. one in which the octahedral faces meet at the middle of the cubic edges. [ 1913 Webster ]
n. [ Hex- + octahedron. ] (Geom.) A solid having forty-eight equal triangular faces. [ 1913 Webster ]
n. [ Gr.
n. [ Gr. &unr_; thrice + E. octahedron. ] (Crystalloq.) A trigonal trisoctahedron. [ 1913 Webster ]
n. [ Gr. &unr_; thrice + FE. octahedron. ] (Crystallog.) A solid of the isometric system bounded by twenty-four equal faces, three corresponding to each face of an octahedron. [ 1913 Webster ]
Tetragonal trisoctahedron,
Trigonal trisoctahedron,