Trap`e*zo*he"dron (?), n. [NL., from trapezium + Gr. seat, base, fr. to sit.] Crystalloq. (a)

A solid bounded by twenty-four equal and similar trapeziums; a tetragonal trisoctahedron. See the Note under Trisoctahedron.


A tetartohedral solid of the hexagonal system, bounded by six trapezoidal planes. The faces of this form are common on quartz crystals.


© Webster 1913.

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