icosahedron

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If you'd like to make your own icosahedron (the more elaborate one of those two), download this template (PDF) and print out ten copies of it.

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Definitions (6)

Toggle American Heritage definitions American Heritage Dictionary (1)

  1. noun A polyhedron having 20 faces.

Toggle Century definitions Century Dictionary (3)

Toggle GNU Webster definitions GNU Webster's 1913 (1)

Toggle WordNet definitions WordNet (1)

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Examples (41)

  • People stopped and gazed up to where a spacecraft, an enormous icosahedron-shaped vessel, had suddenly appeared. —  AnalogSFF,June2007
  • The unique shape of the Easy Dome, called an icosahedron, is designed to optimize the amount of interior space inside each home. —  INHABITAT
  • • Plato (427-347 BCE), in his Timaeus, describes five possible regular solids (the Platonic solids, the tetrahedron, cube, octahedron, dodecahedron and icosahedron), some of which are related to the golden ratio. —  Recently Uploaded Slideshows
  • If you'd like to make your own icosahedron (the more elaborate one of those two), download this template (PDF) and print out ten copies of it. —  jeweled platypus
  • However, the bit of genius that will send you racing to order you own are the maps which have been plotted to create a cut-and-fold icosahedron atlas (below) - a twenty sided object comprised of equilateral triangles. —  Cool Hunting
 

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Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Greek eikosaedron : eikosi, twenty; see wīkm̥tī- in Indo-European roots + -edron, -hedron.

Toggle Century etymologies Century Dictionary (1)

  1. Also written icosaedron, icosihedron; from Greek εἰκοσάεδρον, a body with twenty sides, neuter of εἰκοσάεδρος, εἰκοσίεδρος, of twenty sides, from εἴκοσι, twenty (see icosian), + έδρα, a seat, base, = English settle, a seat.
 

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/aɪkəsəˈhidrən/
by American Heritage

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