| Octahedron (n.) A solid bounded by eight faces. The regular octahedron is contained by eight equal equilateral triangles. Thesaurus Entries Octateuch, cast, company, complement, crew, eighter from Decatur, eleven, first string, first team, five, nine, octad, octagon, octahedron, octameter, octastyle, octave, octavo, octet, octonary, octosyllable, ogdoad, platoon, reserves, rowing crew, second string, second team, squad, string, team, third string, utas, varsity | ![]() |