icosahedron

i·co·sa·he·dron

(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.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

icosahedron

(ˌaɪkəsəˈhiːdrən)

n, pl -drons or -dra (-drə)

(Mathematics) a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles

[C16: from Greek eikosaedron, from eikosi twenty + -edron -hedron]

ˌicosaˈhedral adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

i•co•sa•he•dron

(aɪˌkoʊ səˈhi drən, aɪˌkɒs ə-)

n., pl. -drons, -dra (-drə).

a solid figure having 20 faces.

[1560–70; < Greek eikosáedron=eikosa-, variant of eikosi-, comb. form of eíkosi twenty + -edron -hedron]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

icosahedron - any polyhedron having twenty plane faces

polyhedron - a solid figure bounded by plane polygons or faces

Translations

icosaèdre

icosaedro

Mentioned in

References in periodicals archive

It represents a nanometer-size hollow spherical structure consisting of 60 carbon atoms, which are located at the vertices of a truncated icosahedron. Later, the fullerene nanotubes and many other fullerenes were discovered, such as [C.sub.20], [C.sub.70] and even larger structures due to started production of fullerenes in large quantities.

Numerical Simulation of Charged Fullerene Spectrum

For the second edition, he has added a section devoted to phi math itself, and, in response to many requests, has added a new polyhedron: the truncated icosahedron, or Bucky Ball.

A Geometric Analysis of the Platonic Solids and Other Semi-Regular Polyhedra: With an Introduction to the Phi Ratio: For Teachers, Researchers, and the Generally Curious, 2nd Edition

The trampoline is set up with 400 M webbing and a 2 M bamboo icosahedron in the center of the 89 M diameter tower.

The Yjumper Project - New Prototype Creates a Massive Trampoline Effect in a Shut Down Cooling Tower

have a head that has a slightly spherical shape called an icosahedron. A tube connects the head to spider-like supporting legs.").

THE PROMISING VIRAL THREAT TO BACTERIAL RESISTANCE: THE UNCERTAIN PATENTABILITY OF PHAGE THERAPEUTICS AND THE NECESSITY OF ALTERNATIVE INCENTIVES

In his 2017 essay "Delayed Plasticity: A Preliminary Investigation of the Political Criticism of Sinophone Single-Channel Video Art in the 1980s," curator Sing Song-Yong tells us that the audiovisual material for Pau's video came from Zuni Icosahedron, an experimental theater group founded in 1982 that both Pau and Yung were part of.

"(Not) Just a Historical Document": MUSEUM OF CONTEMPORARY ART

Of the five Platonic solids, only the cube and the icosahedron allow for arrangements of trajectories that can form strictly fine regular stars even for charged particles, provided these have equal masses and absolute values for oppositely charged particles (neither tetrahedron, nor octahedron can form these).

Cosmological Cold Dark Matter and Dark Energy Match Icosahedron Symmetry

Words such as rhombus, trapezium, scalene, triangle, parallelogram, and icosahedron are derived from Latin and Greek roots and reflect their properties.

Choosing the right resources to support the learning of Polygons: Using the correct materials and manipulatives appropriately allows the richness of geometrical concepts to be fully investigated to enable students to explore and reason about shapes

We set C1 = 4 and C2 = 3, respectively, and utilize icosahedron with full orientation to quantize the 3D gradients of each cell.

Learning a Mid-Level Representation for Multiview Action Recognition

Core size strong affects the efficiency of the VLPs encapsulation and correlation between the T-number (Triangulation number, facets per triangular face of an icosahedron) and the self-assembly efficiency could be the reason of this effect.

Targeted drug delivery and vaccinology approaches using virus-like particles for cancer

However, upon reading the written exams, it became apparent that many students had confused the Euclidean shapes of Platonic solids; namely: cube, tetrahedron, octahedron, dodecahedron, icosahedron with non-Euclidean geometry figures.

Designing and teaching the course "Mathematical View" for Turkish Literature majors at Duzce University

Among its critics is Mathias Woo, executive director of the experimental theater company Zuni Icosahedron and a former member of the cultural district's arts and cultural advisory group.

Hong Kong's ambitious museum plan takes shape