trapezohedron

Any of several forms of crystal with trapeziums as faces.

In crystallography, a solid belonging to the isometric system, bounded by twenty-four equal and similar trapezoidal planes; a tetragonal trisoctahedron.

Any solid having trapezoidal faces, as the trigonal trapezohedron of a quartz crystal. See tetartohedrism. Also trapezihedron.

A solid bounded by twenty-four equal and similar trapeziums; a tetragonal trisoctahedron. See the Note under trisoctahedron.

A tetartohedral solid of the hexagonal system, bounded by six trapezoidal planes. The faces of this form are common on quartz crystals.

Any of several forms of crystal with trapezia as faces.

a polyhedron whose faces are trapeziums