icosahedron

(redirected from icosahedral)
Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

icosahedron

(īkō'səhē`drən): see polyhedronpolyhedron
, closed solid bounded by plane faces; each face of a polyhedron is a polygon. A cube is a polyhedron bounded by six polygons (in this case squares) meeting at right angles.
..... Click the link for more information. .
The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

Icosahedron

A regular polygon bounded by 20 equilateral triangles, with 12 vertices and 20 edges.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

icosahedron

[ī¦kä·sə¦hē·drən]
(mathematics)
A 20-sided polyhedron.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

icosahedron

a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Mentioned in ?
References in periodicals archive ?
For 30 hours of milling and treating at 700[degrees]C, a small presence of [omega]-[Al.sub.7][Cu.sub.2]Fe intermetallic phase is observed in the x-ray diffractogram (see Figure 1) and with the increase of the milling time, the appearance of the icosahedral quasicrystalline phase-[phi], together with the formation of the solid solution [beta]-Al (Fe, Cu) and diluted in intermetallic phase [omega]-[Al.sub.7][Cu.sub.2]Fe, these phases become very stable with a time.
Characterization in the Icosahedral Phase of [Al.sub.63][Cu.sub.25][Fe.sub.12] System
Caption: Figure 2: (a) The ball and stick mode of icosahedral [[Cu.sub.8][Se.sub.19]].sup.24-] cluster and its connectivity with twelve [Ge.sup.4+] ions.
A Novel Open-Framework Cu-Ge-Based Chalcogenide Anode Material for Sodium-Ion Battery
They generate the pentagonal quasilattice [B.sub.L] given by rotating and projecting the icosahedral quasilattice B onto the xz-plane.
Toric Geometry of the Regular Convex Polyhedra
The researchers' paper in the scientific journal Nature reports on their computational design and experimental testing of a highly stable icosahedral protein nano-cage.
Self-Assembling Icosahedral Protein Designed
Icosahedral inclusions have been described in [28].
A Doubly Adaptive Algorithm for Edge Detection in 3D Images
They feature a high coverage 332 icosahedral dimple design pattern that provides greater lift, higher flight and greater distance.
Ball Couture Ushers in Color and Style
(7) Flaviviruses are single-stranded, positive-sense RNA viruses with icosahedral nucleocapsids.
Fundus findings in dengue fever: a case report
Figure 5(left) shows the synchrotron high energy X-ray-based pair distribution function analysis of [Au.sub.~500[+ or -]10][(SR).sub.120[+ or -]3] in comparison with fcc-like 100 nm gold nanoparticles, calculated PDF of icosahedral [Au.sub.309] ,Marksdecahedral [Au.sub.389], and truncated octahedral [Au.sub.405].
Plasmonic nanocrystals with precise gold atoms
central part made up of RNA, defensive shell of protein with icosahedral symmetry, and additionally encased in lipid envelope of cellular origin (Beeck and Dubuisson, 2003).
MOLECULAR IDENTIFICATION OF HEPATITIS C VIRUS IN DIFFERENT DISTRICTS OF PUNJAB, PAKISTAN: A PRELIMINARY STUDY
In both cases, the identification of spatial and spectral samples can be done by using the icosahedral grid method in [35].
Generation of Complex Source Point Expansions from Radiation Integrals
Three-dimensional reconstruction of icosahedral particles-the uncommon line.
A Wavelet Based Alternative Iteration Method for the Orientation Refinement of Cryo-Electron Microscopy 3D Reconstruction
The 60 copies of the structural proteins are components of its icosahedral shape and the non-structural proteins are responsible for the replication of viral genome in the host cells.
Bovine genome-wide association study for genetic elements to resist the infection of foot-and-mouth disease in the field

Encyclopedia browser ?
Full browser ?