icosahedron(redirected from icosahedral)
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icosahedron(īkō'səhē`drən): see polyhedronpolyhedron
, 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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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/
A regular polygon bounded by 20 equilateral triangles, with 12 vertices and 20 edges.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
A 20-sided polyhedron.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
a solid figure having 20 faces. The faces of a regular icosahedron are equilateral triangles
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005