Found 2 items, similar to octahedron.
English → English (WordNet) Definition: octahedron octahedron n : any polyhedron having eight plane faces [also: octahedra (pl)]
English → English (gcide) Definition: Octahedron Octahedron \Oc`ta*he"dron\, n. [Gr.?, fr. ? eight-side; 'okta- (for 'oktw` eight) + ? seat, base, from ? to sit.] (Geom.) A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles. [1913 Webster]