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1. A solid bounded by twenty-four equal and similar trapeziums; a tetragonal trisoctahedron. See the Note under Trisoctahedron. 2. A tetartohedral solid of the hexagonal system, bounded by six trapezoidal planes. The faces of this form are common on quartz crystals. 3. a polyhedron whose faces are trapeziums 
Related wordspolyhedron |
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