EnglishoctahedronsnounMeaningA polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.Related wordscubo(English)octahedral(English)tetrahedrons(English)hexahedron(English)octagons(English)polyhedrons(English)dodecahedra(English)tetrahedra(English)SourcesDictionaryAPI.dev English dictionary data