regular octahedron


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Noun1.regular octahedron - an octahedron with eight equilateral triangles as facesregular octahedron - an octahedron with eight equilateral triangles as faces
ideal solid, Platonic body, Platonic solid, regular convex polyhedron, regular convex solid, regular polyhedron - any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
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