| slovo | definícia |
tetrahedron
(encz) | tetrahedron,čtyřstěn n: Zdeněk Brož |
Tetrahedron
(gcide) | 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 octahedron.
[1913 Webster]
Regular tetrahedron (Geom.), a solid bounded by four equal
equilateral triangles; one of the five regular solids.
[1913 Webster] |
tetrahedron
(wn) | tetrahedron
n 1: any polyhedron having four plane faces |
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regular tetrahedron
(encz) | regular tetrahedron, n: |
Icositetrahedron
(gcide) | 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]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 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.
[1913 Webster] Trispast |
icositetrahedron
(gcide) | 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]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 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.
[1913 Webster] Trispast |
Regular tetrahedron
(gcide) | 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 octahedron.
[1913 Webster]
Regular tetrahedron (Geom.), a solid bounded by four equal
equilateral triangles; one of the five regular solids.
[1913 Webster] |
Tetrahedron
(gcide) | 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 octahedron.
[1913 Webster]
Regular tetrahedron (Geom.), a solid bounded by four equal
equilateral triangles; one of the five regular solids.
[1913 Webster] |
regular tetrahedron
(wn) | regular tetrahedron
n 1: a tetrahedron with four equilateral triangular faces |
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