decahedron From WikiWord, the free dictionary /ˌdɛkəˈhiːdɹən/ English Contents DefinitionsRelated wordsReferences DefinitionsnounA polyhedron with ten faces. Related wordsSynonymsdidodecahedrondodecicosidodecahedrondodecahemicosahedronicosidodecadodecahedronpentadodecahedronicosidodecahedronduodecahedronhendecahedronicosahedronenneadecahedrondodecahedronheptahedronenneahedronhemi-icosahedrondodecaedronenneacontahedron References Wiktionary — decahedron Wikipedia — decahedron