4 faces (and edges) meet at every vertex.
So the dual polyhedron is the cube.
Oc`ta*he"dron (?), n. [Gr., fr. eight-side; (for eight) + seat, base, from to sit.] Geom.
A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles.
© Webster 1913.
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