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{%type%} Definitions

WordNet 3.0Copyright Princeton University
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n. - Any polyhedron having twenty plane faces.

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Usage examples (37)
  • The icosahedron is another of the five regular, or Platonic, bodies having all their sides, angles, and planes similar and equal.
  • George Hart has nice pictures including an icosahedron as well.
  • The cube was the symbol of earth and the icosahedron the symbol of water.
  • At the largest level level 0 there are the 20 triangles of an icosahedron.
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The Open Dictionary of English is a collaborative project, based on Open Source materials, LearnThat resources, and partner APIs.
We give special thanks to our LearnThat volunteers, as well as Princeton University and Wiktionary for their Open Source word data. We're also grateful for the support given by Google, Wordnik.com, Dictionary.com, Stands4.com and YouTube, OEDILF.com, Kylescholz.com, Best-Practice.com, Forvo.com, as well as the generous Creative Commons community.