## Definitions for icosahedronaɪˌkoʊ səˈhi drən, aɪˌkɒs ə-

### Princeton's WordNet(0.00 / 0 votes)Rate this definition:

1. icosahedron(noun)

any polyhedron having twenty plane faces

### Wiktionary(0.00 / 0 votes)Rate this definition:

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(0.00 / 0 votes)Rate this definition:

1. Icosahedron(noun)

a solid bounded by twenty sides or faces

2. Origin: [Gr. ; twenty + seat, base, fr. to sit.]

### Freebase(0.00 / 0 votes)Rate this definition:

1. Icosahedron

In geometry, an icosahedron is a polyhedron with 20 triangular faces, 30 edges and 12 vertices. A regular icosahedron with identical equilateral faces is often meant because of its geometrical significance as one of the five Platonic solids, all regular polyhedrons including the regular tetrahedron, the cube or regular hexahedron, the regular octahedron, and the regular dodecahedron with 4, 6, 8 and 12 identical faces, respectively. It has five triangular faces meeting at each vertex. It can be represented by its vertex figure as 3.3.3.3.3 or 35, and also by Schläfli symbol {3,5}. It is the dual of the dodecahedron, which is represented by {5,3}, having three pentagonal faces around each vertex. The name comes from the Greek: εικοσάεδρον, from είκοσι "twenty" and ἕδρα "seat". The plural can be either "icosahedrons" or "icosahedra".

### Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition:

1. Icosahedron

ī-kos-a-hē′dron, n. (geom.) a solid having twenty equal sides or faces.—adj. Icosahē′dral. [Gr. eikosi, twenty, hedra, base.]

### Numerology

1. Chaldean Numerology

The numerical value of icosahedron in Chaldean Numerology is: 7

2. Pythagorean Numerology

The numerical value of icosahedron in Pythagorean Numerology is: 3

# Translations for icosahedron

### From our Multilingual Translation Dictionary

• icosàedre
• dvacetistěn
• ikosaeder
• Ikosaeder
• dudekedro
• icosaedro
• ikosaeeder, kakskümmendtahukas
• ikosaedri
• icosaèdre
• ikozaéder
• ikosaedro
• regelmatig twintigvlak
• ikosaeder
• dwudziestościan foremny
• icosaedro
• икосаэдр
• ikosaeder

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