Found 2 items, similar to icosahedron.
English → English (WordNet) Definition: icosahedron icosahedron n : any polyhedron having twenty plane faces [also: icosahedra (pl)]
English → English (gcide) Definition: Icosahedron 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]