Deltohedron
Deltohedron , noun
[Greek de`lta, the letter D + 'e`dra seat, base.]
(Crystallography) A solid bounded by twelve quadrilateral faces. It is a hemihedral form of the isometric system, allied to the tetrahedron.
Deltohedron , noun
[Greek de`lta, the letter D + 'e`dra seat, base.]