Octahedral a. : Having eight faces or sides; of, pertaining to, or formed in, octahedrons; as, octahedral cleavage.

Example:
How do you make the origami Octahedral cross by Tung Ken Lam?

Taxonomy
octahedron, regular octahedron, edges, octahedra, tetrahedron, edge length, adjacent vertices, polyhedra, Symmetry, tetrahedra, symmetry group, free encyclopedia, vertex, equilateral triangles, Platonic solids, square, hexagons, regular tetrahedron.

Defination from the web:
Octahedral) Jump to: navigation, search. For the album by The Mars Volta, see Octahedron (album) ... Natural crystals of diamond, alum or fluorite are commonly octahedral. ...