octahedron

2 definitions found

octahedron - Collaborative International Dictionary of English v.0.48 :

  octahedron \oc`ta*he"dron\ ([o^]k`t[.a]*h[=e]"dr[o^]n), n. [Gr.
     'okta`edron, fr. 'okta`edros eight-sided; 'okta- (for 'oktw`
     eight) + "e`dra seat, base, from "e`zesqai to sit.] (Geom.)
     A solid bounded by eight faces. The regular octahedron is
     contained by eight equal equilateral triangles.
     [1913 Webster]

octahedron - WordNet (r) 2.1 (2005) :

  octahedron
      n 1: any polyhedron having eight plane faces