**Icosahedral** — I co*sa*he dral, a. [See {Icosahedron}.] (Geom.) Having twenty equal sides or faces. [1913 Webster] … The Collaborative International Dictionary of English

**icosahedral** — In virology this term refers to a virus with an icosahedral capsid, which has the shape of a regular polyhedron having 20 equilateral triangular faces and 12 corners … Dictionary of microbiology

**icosahedral** — icosahedron ► NOUN (pl. icosahedra or icosahedrons) ▪ a three dimensional shape having twenty plane faces, in particular a regular solid figure with twenty equal triangular faces. DERIVATIVES icosahedral adjective. ORIGIN from Greek eikosaedros… … English terms dictionary

**Icosahedral honeycomb** — Poincaré disk model Type regular hyperbolic honeycomb Schläfli symbol {3,5,3} Coxeter Dynkin diagram … Wikipedia

**Icosahedral symmetry** — A Soccer ball, a common example of a spherical truncated icosahedron, has full icosahedral symmetry. A regular icosahedron has 60 rotational (or orientation preserving) symmetries, and a symmetry order of 120 including transformations that… … Wikipedia

**Icosahedral prism** — In geometry, an icosahedral prism is a convex uniform polychoron (four dimensional polytope). This polychoron has 22 polyhedral cells: 2 icosahedra connected by 20 triangular prisms. It has 70 faces: 30 squares and 40 triangles. It has 72 edges… … Wikipedia

**Icosahedral 120-cell** — In geometry, the icosahedral 120 cell is a star polychoron with Schläfli symbol {3,5,5/2}. It is one of 10 regular Schläfli Hess polychora.It is constructed by 5 icosahedra around each edge in a pentagrammic figure. The vertex figure is a great… … Wikipedia

**icosahedral symmetry** — an arrangement of viral subunits in which the structure of the viral capsid is characterized by symmetry having the rotation axes of a regular polygon with 20 triangular surfaces (icosahedron); each face contains several subunits, the total… … Medical dictionary

**icosahedral** — adjective Date: circa 1828 of or having the form of an icosahedron … New Collegiate Dictionary

**icosahedral** — adjective Of, relating to, or having the shape of an icosahedron … Wiktionary