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出典:Wiktionary
出典:『Wiktionary』 (2025/11/19 19:53 UTC 版)
From poly- + -choron, from Ancient Greek πολῠ́ς (polŭ́s, “many”) and χῶρον (khôron, “room; space”).
polychoron (plural polychorons or polychora)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/19 21:54 UTC 版)
In geometry, a polychoron or 4-polytope is a four-dimensional polytope. It is a connected and closed figure, composed of lower dimensional polytopal elements: vertices, edges, faces (polygons), and cells (polyhedra). Each face is shared by exactly two cells.
polychoron