tet|ra|he|dron

tet|ra|he|dron
tet|ra|he|dron «TEHT ruh HEE druhn», noun, plural -drons, -dra «-druh».
Geometry. a solid figure having four faces. The most common tetrahedron is a pyramid whose base and three sides are equilateral triangles.
[< Greek tetráedron < tetra- four + hédra seat, base]

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  • tet — al·lo·tet·ra·ploid; ap·a·tet·ic; cen·tet·i·dae; cy·clo·octa·tet·ra·ene; di·e·tet·ic; di·e·tet·i·cal·ly; di·e·tet·ics; ex·ul·tet; fus·tet; mi·gra·tet·ic; mi·gra·tet·ics; moor·tet·ter; mo·tet; mot·tet·to; nepho·tet·tix; oc·tet; or·tet;… …   English syllables

  • tetrahedron — tet·ra·he·dron …   English syllables

  • tetrahedron — tet•ra•he•dron [[t]ˌtɛ trəˈhi drən[/t]] n. pl. drons, dra ( drə). 1) math. a solid contained by four plane faces; a triangular pyramid 2) any of various objects resembling a tetrahedron • Etymology: 1560–70; < LGk tetráedron …   From formal English to slang

  • ra — ra·chid·i·an; ra·chi·form; ra·chi·glos·sa; ra·chil·la; ra·chi·o·dont; ra·chi·om·e·ter; ra·chi·on; ra·chis; ra·chis·chi·sis; ra·chit·ic; ra·chi·tis; ra·chit·o·mi; ra·cial; ra·cial·ism; ra·cial·ist; ra·cial·is·tic; ra·ci·al·i·ty; ra·cial·iza·tion;… …   English syllables

  • Icositetrahedron — I co*si*tet ra*he dron, n. [Gr. ? twenty + ?, combining form of ? four + ? seat, base.] (Crystallog.) A twenty four sided solid; a tetragonal trisoctahedron or trapezohedron. [1913 Webster] …   The Collaborative International Dictionary of English

  • Regular tetrahedron — Tetrahedron Tet ra*he dron, n. [Tetra + Gr. ? seat, base, fr. ? to sit.] (Geom.) A solid figure inclosed or bounded by four triangles. [1913 Webster] Note: In crystallography, the regular tetrahedron is regarded as the hemihedral form of the… …   The Collaborative International Dictionary of English

  • Tetrahedron — Tet ra*he dron, n. [Tetra + Gr. ? seat, base, fr. ? to sit.] (Geom.) A solid figure inclosed or bounded by four triangles. [1913 Webster] Note: In crystallography, the regular tetrahedron is regarded as the hemihedral form of the regular… …   The Collaborative International Dictionary of English

  • tetrakaidecahedron — tet·ra·kai·dec·a·he·dron …   English syllables

  • a — acar·a·pis; ac·a·ri·a·sis; ac·a·ri·a·sis; ac·a·ri·na; ac·a·ri·nar·i·um; ac·a·rine; ac·a·ri·nol·o·gy; ac·a·ri·no·sis; ac·a·ro·ce·cid·i·um; ac·a·roid; ac·a·rol·o·gist; ac·a·rol·o·gy; ac·a·ro·pho·bia; ac·a·rus; acat·a·lep·sy; acat·a·lex·is;… …   English syllables

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