Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of tetrahedron is as below...

Tetrahedral :: Tetrahedral (a.) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs..

Cuproid :: Cuproid (n.) A solid related to a tetrahedron, and contained under twelve equal triangles..

Hemihedron :: Hemihedron (n.) A solid hemihedrally derived. The tetrahedron is a hemihedron.

Icositetrahedron :: Icositetrahedron (n.) A twenty-four-sided solid; a tetragonal trisoctahedron or trapezohedron.

Deltohedron :: Deltohedron (n.) A solid bounded by twelve quadrilateral faces. It is a hemihedral form of the isometric system, allied to the tetrahedron..

Tetrahedral :: Tetrahedral (a.) Having the form of the regular tetrahedron.

Hemihedral :: Hemihedral (a.) Having half of the similar parts of a crystals, instead of all; consisting of half the planes which full symmetry would require, as when a cube has planes only on half of its eight solid angles, or one plane out of a pair on each of its edges; or as in the case of a tetrahedron, which is hemihedral to an octahedron, it being contained under four of the planes of an octahedron..

Tetrahedron :: Tetrahedron (n.) A solid figure inclosed or bounded by four triangles.

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