A molecular shape that results when there are four bonds and no lone pairs around the central atom in the molecule. The atoms bonded to the central atom lie at the corners of a tetrahedron with 109.5° angles between them. The ammonium ion (NH
4+) has a tetrahedral molecular geometry.
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http://antoine.frostburg.edu/chem/senese/101/glossary/t.shtml
• (a.) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs. • (a.) Having, or composed of, four sides. • (a.) Having the form of the regular tetrahedron.
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http://thinkexist.com/dictionary/meaning/tetrahedral/
A term used to describe molecules and polyatomic ions that have one atom in center and four atoms at the corners of a tetrahedron.
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http://www.chemistry-dictionary.com/definition/tetrahedral.php
A term used to describe molecules and polyatomic ions that have one atom in center and four atoms at the corners of a tetrahedron.
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http://www.encyclo.co.uk/local/20728
1. Having, or composed of, four sides. ... 2. <chemistry> Having the form of the regular tetrahedron. Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron belongs. ... <geometry> Tetrahedral angle, a solid angle bounded or inclosed by four plane angles. ... See: Tetrahedron. ... Source: W...
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http://www.encyclo.co.uk/local/20973
Exhibiting the shape of a tetrahedron.
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http://www.encyclo.co.uk/local/22291
Tet`ra·he'dral adjective [ See
Tetrahedron .]
1. Having, or composed of, four sides.
2. (Crystallog.) (a) Having the form of the regular tetrahedron.
(b) Pertaining or related to a tetrahedron, or to the system of hemihedral forms to which the tetrahedron...
Found on
http://www.encyclo.co.uk/webster/T/34
No exact match found.
