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 (ī-kō′sə-hē′drən, ī-kŏs′ə-)
n. pl. i·co·sa·he·drons or i·co·sa·he·dra (-drə)
A polyhedron having 20 faces.

[Greek eikosaedron, from neuter of Greek eikosaedros, twenty-sided : eikosi, twenty; see wīkm̥tī- in Indo-European roots + -edros, -sided; see -hedron.]

i·co′sa·he′dral (-drəl) adj.
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Adj.1.icosahedral - of or relating to an icosahedron
References in periodicals archive ?
It is a member of the Parvoviridae family, and it's tiny, with a roughly 18 nm diameter, unenveloped icosahedral protein capsid carrying ~4700 bases of DNA.
This highly symmetrical, icosahedral dense array of antigens has been shown in our studies to induce very strong immune responses, resulting in its superior efficacy.
note of their process parallelizing the new Non-Hydrostatic Icosahedral Model (NIM): "Scientists wrote the code, computer scientists were responsible for the directive-based parallelization and optimization, and software engineers maintained the software infrastructure capable of supporting development, testing, and running the model on diverse supercomputer systems.
The viral DNA is contained within an icosahedral capsid that measures 45 nm-55 nm.
Negative activation energies in CO oxidation over an icosahedral Au/Mg(OH)2 catalyst.
RV belongs to the genus Rotavirus under the family Reoviridae is non-enveloped, icosahedral particles consisting of eleven segments of double stranded RNA (dsRNA) enclosed in a triple-layered protein capsid (Broor et al.
The human parvovirus B19 (B19V), a member of the Erythroparvovirus genus (Parvoviridae family), is a small, non-enveloped icosahedral virus composed of two structural proteins VP1 (83kDa) and VP2 (58kDa) surrounding a linear single-stranded DNA genome of approximately 5.
In their initial configuration, referred to as immature virions, particles contain a lipid membrane with full-length prM and E proteins arranged in an icosahedral lattice on the virion surface.
While crystals can exhibit only two, three, four, or six-fold rotational symmetry, quasicrystals can exhibit seemingly "impossible" five-fold symmetry in two dimensions and icosahedral symmetry in three dimensions.
The IBD virus is a non-enveloped virion with icosahedral symmetry and a diameter ranging from 55-65 nm (3).
Herpes Simplex Virus (HSV) is a neurotropic virus with a large linear, double-stranded DNA genome, protected by a capsid with icosahedral symmetry.