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Definitions for icosahedronaɪˌkoʊ səˈhi drən, aɪˌkɒs ə-

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Random House Webster's College Dictionary

i•co•sa•he•dron*aɪˌkoʊ səˈhi drən, aɪˌkɒs ə-(n.)(pl.)-drons, -dra

  1. a solid figure having 20 faces.

    Category: Math

* (-drə)..

Origin of icosahedron:

1560–70; < Gk eikosáedron=eikosa-, var. of eikosi-, comb. form of eíkosi twenty +-edron-hedron

Princeton's WordNet

  1. icosahedron(noun)

    any polyhedron having twenty plane faces

Wiktionary

  1. icosahedron(Noun)

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

    2. Origin: From εἰκοσάεδρον, from εἴκοσι + ἕδρα.

Webster Dictionary

  1. Icosahedron(noun)

    a solid bounded by twenty sides or faces

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