trisoctahedron
noun Etymology: Greek tris thrice + English octahedron — more at ter- Date: circa 1847 a solid (as a crystal) having 24 congruent faces meeting on the edges of a regular octahedron

New Collegiate Dictionary. 2001.

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  • Trisoctahedron — Tris*oc ta*he dron, n. [Gr. ? thrice + FE. octahedron.] (Crystallog.) A solid of the isometric system bounded by twenty four equal faces, three corresponding to each face of an octahedron. [1913 Webster] {Tetragonal trisoctahedron}, a… …   The Collaborative International Dictionary of English

  • trisoctahedron — [tris äk΄tə hē′drən] n. [Gr tris, thrice (< treis,THREE) + OCTAHEDRON] an isometric solid figure or crystal consisting of an octahedron that has each face divided into three faces trisoctahedral adj …   English World dictionary

  • trisoctahedron — /trɪsˌɒktəˈhidrən/ (say tris.oktuh heedruhn) noun (plural trisoctahedrons or trisoctahedra /trɪsˌɒktəˈhidrə/ (say tris.oktuh heedruh)) a solid bounded by twenty four equal faces, three corresponding to each face of an octahedron, called… …   Australian English dictionary

  • trisoctahedron — trisoctahedral, adj. /tris ok teuh hee dreuhn/, n., pl. trisoctahedrons, trisoctahedra / dreuh/. a solid bounded by 24 identical faces in groups of three, each group corresponding to one face of an octahedron. [1840 50; < Gk trís thrice +… …   Universalium

  • trisoctahedron — tris·octahedron …   English syllables

  • trisoctahedron — tris•oc•ta•he•dron [[t]trɪsˌɒk təˈhi drən[/t]] n. pl. drons, dra ( drə). math. a solid bounded by 24 identical faces in groups of three, each group corresponding to one face of an octahedron • Etymology: 1840–50; < Gk trís thrice +octahedron… …   From formal English to slang

  • trisoctahedron — (|)tris, trəs+ noun Etymology: tris + octahedron : a solid (as a crystal) having 24 congruent faces meeting on the edges of a regular octahedron compare trapezohedron …   Useful english dictionary

  • Tetragonal trisoctahedron — Trisoctahedron Tris*oc ta*he dron, n. [Gr. ? thrice + FE. octahedron.] (Crystallog.) A solid of the isometric system bounded by twenty four equal faces, three corresponding to each face of an octahedron. [1913 Webster] {Tetragonal trisoctahedron} …   The Collaborative International Dictionary of English

  • Trigonal trisoctahedron — Trisoctahedron Tris*oc ta*he dron, n. [Gr. ? thrice + FE. octahedron.] (Crystallog.) A solid of the isometric system bounded by twenty four equal faces, three corresponding to each face of an octahedron. [1913 Webster] {Tetragonal trisoctahedron} …   The Collaborative International Dictionary of English

  • trigonal trisoctahedron — noun : a trisoctahedron whose faces are triangles * * * a trisoctahedron whose faces are triangles. [1890 95] …   Useful english dictionary

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