regular icosahedron

2 definitions found

regular icosahedron - Collaborative International Dictionary of English v.0.48 :

  Icosahedron \I`co*sa*he"dron\, n. [Gr. ?; ? twenty + ? seat,
     base, fr. ? to sit.] (Geom.)
     A solid bounded by twenty sides or faces.
     [1913 Webster]
  
     Regular icosahedron, one of the five regular polyhedrons,
        bounded by twenty equilateral triangules. Five triangles
        meet to form each solid angle of the polyhedron.
        [1913 Webster]

regular icosahedron - WordNet (r) 2.1 (2005) :

  regular icosahedron
      n 1: an icosahedron with twenty equilateral triangles as faces