icosahedron

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[edit] English

[edit] Etymology

From Greek icosa- + -hedron

[edit] Noun

Singular
icosahedron

Plural
icosahedra or icosahedrons

icosahedron (plural icosahedra or icosahedrons)

  1. (geometry) a polyhedron with twenty faces; the regular icosahedron has regular triangles as faces and is one of the Platonic solids.

120px-Icosahedron-slowturn.gif

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