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