Noun
rhombic dodecahedron (plural rhombic dodecahedra or rhombic dodecahedrons)
(geometry) A convex polyhedron that has 12 congruent rhombic faces, 24 edges and 14 vertices of two types (eight 3-edge and six 4-edge) and is a Catalan solid.
In Conway polyhedron notation it can be seen as gT, a gyro tetrahedron. : Rhombic dodecahedron Rhombic dodecahedron The rhombic dodecahedron is a zonohedron with twelve rhombic faces and octahedral symmetry. Source: Internet