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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 ico·sa·he·dron /-drən/
 二十面體

From: Webster's Revised Unabridged Dictionary (1913)

 I·co·sa·he·dron n.  Geom. A solid bounded by twenty sides or faces.
 Regular icosahedron, one of the five regular polyhedrons, bounded by twenty equilateral triangules. Five triangles meet to form each solid angle of the polyhedron.
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From: WordNet (r) 2.0

 icosahedron
      n : any polyhedron having twenty plane faces
      [also: icosahedra (pl)]