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Icosahedron

//ˌaɪkoʊsəˈhiːdɹən// noun

Definitions

Noun
  1. 1
    A polyhedron with twenty faces.
  2. 2
    any polyhedron having twenty plane faces wordnet
  3. 3
    A regular icosahedron: one of the Platonic solids, all of whose faces are regular (equilateral) triangles specifically

Etymology

From Ancient Greek εἰκοσάεδρον (eikosáedron), from εἴκοσι (eíkosi, “twenty”) + ἕδρα (hédra, “face of a geometrical solid”). Equivalent to icosa- + -hedron.

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