O1C3T1A1H4E1D2R1A1
15 points
OCTAHEDRA is validvalid
OCTAHEDRON, a polyhedron with eight sides [n]
OCTAHEDRON, (Greek) a solid bounded by eight plane faces, also OCTOHEDRON [n]
OCTAHEDRON, a polyhedron with eight sides [n]
OCTAHEDRON, (Greek) a solid bounded by eight plane faces, also OCTOHEDRON [n]