icosahedron


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

icosahedron

(ī-kō″să-hē′drŏn, kŏs″) [Gr. eikosaedron]
A nearly spherical structure made of 20 identical subunits linked at 12 symmetrical corners. Each subunit is an equilateral triangle. Several viruses, including the human immunodeficiency virus (HIV), are icosahedral.

icosahedron

20-facteted sphere, e.g. verruca virus
References in periodicals archive ?
Analogically, examine the relationship between the number of faces and vertices of a regular dodecahedron and a regular icosahedron.
One network was built up of the side midpoints of the dodecahedron and the second one of the side midpoints of the icosahedron.
I lead a discussion about why the icosahedron is an advantageous structure for the viral capsid.
In mathematics, the classic football shape is called a truncated icosahedron.
Sc essentially increases content of quasicrystalline icosahedron [psi]-phase, whereby, like in case of non-alloyed powders, content of [psi]-phase increases by means of size of the particles reduction (Figure 4).
For example, the truncated icosahedron, which is the polyhedron giving the structure of the soccer ball, has two hexagons and a pentagon meeting at each vertex.
30) The physical properties of the protein require it to self-assemble into a vacant 72-sided icosahedron.
One icosahedron is used to classify the space around us, while another is used to express the dynamics of dance.
The primary thesis in the Mysterium cosmographicum is that God created the (Copernican) universe to express the five platonic solids (the cube, tetrahedron, octahedron, icosahedron, and dodecahedron).
It often happens in periods of social and economic adversity that theater becomes more introspective and brooding--and there is some evidence of this in the more recent work of Hong Kong's foremost experimental theater troupe, Zuni Icosahedron.
An icosahedron is a geometric solid consisting of twenty faces," notes Frederick J.
html) to assist them in designing versions of a dodecahedron, tetrahedron, cube, octahedron, and icosahedron.