Englishoctahedra/ˌɒktəˈhiːdɹə/ · nounMeaningA polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.Related wordscubo(English)octahedral(English)tetrahedra(English)dodecahedra(English)hexahedron(English)icosahedra(English)tetrahedrons(English)polyhedra(English)SourcesDictionaryAPI.dev English dictionary data