dictionary help| trisoctahedron | medical dictionary |
<chemistry> A solid of the isometric system bounded by twenty-four equal faces, three corresponding to each face of an octahedron. Tetragonal trisoctahedron, a trisoctahedron each face of which is a quadrilateral; called also trapezohedron and icositetrahedron. Trigonal trisoctahedron, a trisoctahedron each face of which is an isosceles triangle.
Origin: Gr. Thrice + FE. Octahedron.
(01 Mar 1998)
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