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icosahedron
(redirected from icosahedra)

    Also found in: Dictionary/thesaurus, Wikipedia 0.02 sec.
icosahedron (īkō'səhē`drən): see polyhedron polyhedron , closed solid bounded by plane faces; each face of a polyhedron is a polygon. A cube is a polyhedron bounded by six polygons (in this case squares) meeting at right angles.
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icosahedron
a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles
icosahedron [ī¦kä·sə¦hē·drən]
(mathematics)
A 20-sided polyhedron.
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His icosahedra and the fact of the Pyramid having two perfectly formed tetrahedra in it leads to creation of delta wave forms out of the cosmic energy.
Creation by Robert Bruce Baird / Reference and Education community
Icosahedra also have locations around which there is threefold or twofold symmetry.
Armor-plated puzzle: deciphering the code of viral geometry by Weiss, Peter Ulrich / Science News
Regular icosahedra and dodecahedra are special forms of both icosahedral point groups, 235 and m35.
Quasicrystals by Cahn, John W. / Journal of Research of the National Institute of Standards and Technology
 
 
 
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