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icosahedral |
Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia, Hutchinson | 0.06 sec. |
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icosahedral a regular polyhedron with 20 triangular faces, 12 corners and 30 sides, having cubic symmetry with 5:3:2-fold axes. A common structural form for the capsid of many viruses including herpesviruses, adenoviruses, parvoviruses, reoviruses, picornaviruses and retroviruses. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Picornaviruses constitute a diverse family of single-stranded positive-sense RNA viruses whose genome is packed into a nonenveloped icosahedral capsid (1). Over half of all virus families have shells with icosahedral symmetry. By rapid solidification we had made a solid that was discretely diffracting like a periodic crystal, but with icosahedral symmetry. |
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