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Polytetrahedron is a term used for three distinct types of objects, all based on the tetrahedron: *A uniform convex 4-polytope made up of 600 tetrahedral cells. It is more commonly known as a 600-cell or hexacosichoron. Other derivative 4-polytope are identified as polytetrahedra, where a qualifying prefix such as ''rectified'' or ''truncated'' is used. *A connected set of regular tetrahedra, the 3-dimensional analogue of a polyiamond. Polytetrahedra and polyiamonds are related as polycubes are related to polyominoes. *In origami, a polypolyhedron is "a compound of multiple linked polyhedral skeletons with uniform nonintersecting edges" (). There exist two topologically distinct polytetrahedra, each made up of four intersecting triangles. == See also == * Compound of five tetrahedra * Compound of ten tetrahedra 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Polytetrahedron」の詳細全文を読む スポンサード リンク
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