trisoctahedron

A solid figure having 24 equal faces, every three of which correspond to one face of an octahedron.

This name is usually limited to the isometric form having triangular faces, formerly called a trigonal trisoctahedron.

In crystallography, a solid bounded by twenty-four equal faces, three corresponding to each face of an octahedron.

A solid of the isometric system bounded by twenty-four equal faces, three corresponding to each face of an octahedron.

A trisoctahedron each face of which is a quadrilateral; called also trapezohedron and icositetrahedron.